Tổng số hạt proton, neutron và electron trong ${}_{\text{9}}{}^{\text{19}}\text{F}$ là

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.

The origins of popular foods often reveal surprising historical insights. (18)______. While many assume that curry was introduced to England through interactions with India in the 1600s, historical evidence suggests otherwise. Wealthy English families,(19)______, were consuming dishes prepared with curry spices as early as the time of King Richard I. Notably, the term “curry” appears in an English cookbook published in 1377, long before British ships traveled to India. This early mention highlights how food traditions can transcend borders and evolve over centuries, influenced by trade and exploration.

Similarly, pizza, a dish frequently associated with Italian cuisine, (20)______. While modern pizza originated in Naples, records indicate that in the 500s, Persians consumed round, flat bread topped with cheese. This precursor to the pizza we know today reflects the global interconnectedness of culinary traditions, where simple yet innovative recipes emerge in different cultures independently. (21)______.

The history of hamburgers also deviates from common perceptions. While widely regarded as an American culinary creation, (22)_______. According to historical accounts, Otto Kuasw created the first hamburger in 1891, and by 1895, German sailors had introduced the dish to the United States. This journey from Germany to the U.S. demonstrates how cultural exchanges shape iconic dishes.

Understanding the origins of these foods enhances appreciation of their cultural and historical significance. Regardless of their provenance, their enduring appeal lies in their taste, adaptability, and ability to bring people together across time and space.

I lost the match because I was playing very badly. It was even________than the last game.

Cho tam giác $ABC$. Mệnh đề nào sau đây có mệnh đề đảo sai?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 40.

Parents of a Tokyo elementary school are up in arms at being asked to pay 730 dollars for their child's school uniform. A public elementary school in Tokyo's upmarket Ginza district has decided to adopt new school uniforms designed by the luxury Italian designer Armani. The bespoke uniforms, which include a hat and bag, are priced at over 80,000 (730 dollars) each. Parents are angry at the school's decision and are protesting at what they view as the exorbitant price for a uniform of an eight-year-old child. The school said it wanted a designer uniform that represented the rich area of Ginza. School officials visited top department stores and decided to ask the fashion brand Armani to design the uniform.

The expensive uniform has created such a fuss that it has been discussed in Japan's parliament. One lawmaker said that since the school is public and not private, "a certain price range needs to be considered". Finance Minister Taro Aso said. "Clearly it's expensive. It would be tough if a student could not afford to pay for it." Japan's education minister said steps would be taken to ensure the financial burden placed on parents for uniforms, "would not be excessive". Twitter users said young children are not interested in designer clothes. The school principal said. "With humility, I take the criticism that the explanation has been insufficient and not well-timed. I will go on explaining carefully to those concerned."

Who said the price of the uniform was clearly expensive?

Cho mệnh đề chứa biến: "$P(x) \, : \, x < x^2$". Trong các mệnh đề sau, mệnh đề nào sai?

CHỦ ĐỀ: NGƯỜI Ở BẾN SÔNG CHÂU

(Tham khảo bài văn của chủ đề trong đường link dưới đây ở trang 21)

https://tvsthpt.dlib.vn/app/doc-sach-ebook/d02db18272fe

Và trả lời câu hỏi sau:

Nhân vật dì Mây nổi bật với những phẩm chất gì? 

Chọn các đáp án đúng:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.

Biting into a ripe, juicy fruit brings a smile to many people’s faces. But eating that same fruit a week before it is ripe probably wouldn’t be as enjoyable! Unripe fruits are often hard and bitter, but that serves a purpose. The hard exterior of an unripe fruit protects the developing seed inside. After a seed fully develops inside the fruit, the fruit changes color, softens, and gets sweeter to become more attractive to animals and humans. These organisms eat the fruit and spread its seeds, ensuring the plant’s survival and regrowth.

But how does a fruit ripen? The ripening process involves many complex chemical reactions. When a fruit ripens, it goes through a chemical change. A chemical change happens when bonds within molecules break, and the atoms that once formed them regroup into new molecules. Chemical changes are irreversible. Once a fruit ripens, it cannot become unripe again.

One molecule responsible for this chemical change is ethylene. Ethylene (C2H4) is a colorless gas made up of carbon and hydrogen atoms. (I). It is a naturally occurring molecule in the atmosphere. (II). It is also an important plant hormone. (III). Plants release ethylene through the growing tips of roots, flowers, and ripening fruit. (IV). Although ethylene serves other purposes in plants, one of its main purposes is to trigger the chemical reactions that cause fruits to ripen. As the fruit matures, oxygen in the air helps stimulate the production of ethylene. This ethylene production is a signal that begins fruit ripening. For that reason, unripe fruits have low levels of ethylene, while ripe fruits have higher levels of ethylene. Most fruits produce ethylene and respond to ethylene in the atmosphere.

Although fruits require ethylene to ripen, different types of fruits respond to this molecule in two distinct ways: non-climacteric fruits and climacteric fruits. Non-climacteric fruits do not ripen after harvesting. They produce very little ethylene of their own. Climacteric fruits, on the other hand, continue to ripen after they are picked. These fruits produce a large amount of ethylene. Climacteric fruits can also speed up the ripening process of other fruits nearby since they release high levels of ethylene into the air.  

The phrase These organisms in paragraph 1 refers to...

Đại bộ phận lãnh thổ nước Liên bang Nga nằm trong vành đai khí hậu nào?

“Con ơi mẹ bảo con này

Cướp đêm là giặc, cướp ngày là quan”

Câu ca dao trên phản ánh hiện trạng gì dưới thời Nguyễn?

Trong các lĩnh vực sau đây, có bao nhiêu lĩnh vực thuộc ngành Sinh học?

(1) Di truyền học.

(2) Sinh học tế bào.

(3) Khoa học Trái Đất.

(4) Vi sinh vật học.

(5) Hóa học.

(6) Công nghệ Sinh học.

Theo em cho bài toán tính tổng s=1+2+3+...+n. Để giải bài toán trên ta có thể dùng:

Chu kỳ dao động nhỏ của con lắc đơn phụ thuộc vào:

Cây phong nhuốm đỏ là loài cây tượng trưng cho mùa nào ở Trung Quốc?

Tìm \(m\) để góc giữa hai vectơ \(\vec{u}=\left(1 ; \log _3 5 ; \log _m 2\right), \vec{v}=\left(3 ; \log _5 3 ; 4\right)\) là góc nhọn.

Đối với hoạt động của Opêron - Lac ở vi khuẩn E.coli, chất cảm ứng (lactôzơ) có vai trò như thế nào?

Biện pháp nào phòng chống hành vi bắt nạt trên mạng?

Tại sao khi tiến hành ghép cành thì nên cắt bỏ hết lá trên cành ghép?

Máy tính trở thành công cụ lao động không thể thiếu được trong xã hội hiện đại vì:

Find the word which has a different sound in the part underlined.