Có hai tế bào sinh tinh đều có kiểu gene $\mathrm{AaBb}\frac{\mathrm{DE}}{\mathrm{de}}$, đều đi vào quá trình giảm phân bình thường nhưng chỉ có một trong hai tế bào đó có xảy ra hoán vị gene. Số loại giao tử tối đa có thể tạo ra từ hai tế bào sinh tinh nói trên là bao nhiêu?

Những chất nào dưới đây là nguyên liệu của quá trình quang hợp ở thực vật?

Số AO và số electron tối đa trong lớp electron thứ n (n ≤ 4) lần lượt là

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

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 chilThe school said it wanted a designer uniform that represented the rich area of GinzSchool 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 sai"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 sai"With humility, I take the criticism that the explanation has been insufficient and not well-timeI will go on explaining carefully to those concerned."

(Source: https.//www.japantimes.co.jp/news/2018/02/09/national/armani-parents-question-pricey-uniforms-public-school-tokyos-ginza-district/)

What does the passage mainly discuss?

Nội dung chính của văn bản Truyện về các vị thần sáng tạo thế giới là gì?

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.

Who are you?

On 6 June 2011, the media reported the kidnapping of a female Syrian-American blogger called Amina Arraf. Regarded as a daring political rebel, the 35-year-old had gained popularity for her blogs protesting the lack of freedom in Syria. Yet, only two days later, it was discovered that Amina had never existed. She was a fictional character created by Tom MacMaster, a forty-year-old American PhD student at the University of Edinburgh.

MacMaster's invention is an example of sock puppetry: the use of false identities to deceive others. (I). The false identity is known as a sock puppet, and its creator, a puppet master. (II). MacMaster created Amina to express his views on Middle Eastern affairs without offending other Americans. (III). Writing as Amina gave him the authority to say what he wanted. (IV).  

At the turn of the millennium, Debbie Swenson created Kaycee Nicole, a fictional teenage girl suffering from terminal cancer. Her blog, Living Colours, described Kaycee’s struggle, attracting millions of readers. When Kaycee 'died' on 14 May 2001, her fans were devastated. Their distress turned to anger when they discovered that Kaycee was not real. Swenson had developed the character to gain attention and sympathy.

While Amina and Kaycee were used to meet their creators' needs, other identities have been invented for profit. American gun advocate John Lott made up a fake student, Mary Rosh, to defend his writing online and give him positive reviews. Mystery writer RJ Ellory fabricated a team of sock puppets to praise his own books and tear into those of his rivals. British historian Orlando Figes lost credibility when he had to publicly apologise for doing the same.

Yet none of these stories compare to large-scale sock puppetry today. The New York City Police Department has false identities on social media to catch criminals. The US military is believed to use sock puppets to track potential terrorists. It is clear that the internet is a minefield today and we all have to step very carefully in order not to get hurt.

Which of the following best summarizes the main point of the passage?

Nguyên tử P (Z = 15) có xu hướng

Hoạt động tạo ra sản phẩm vật chất và tinh thần quyết định tạo ra sản phẩm vật chất và tinh thần quyết định sự tồn tại phát triển của con người và xã hội gọi là gì?

Mục đích chính của cộng đồng mã nguồn mở là

Choose A, B, C or D that has the CLOSEST meaning to the underlined word/phrase in each question.

It is important for all of us to focus on bettering our environment to ensure a sustainable future.

Choose A, B, C or D to answer the question.

Following are statements about the novel "Harry Potter." Which statement can be considered a fact?

Văn hóa Ấn Độ trở thành nguồn cảm hứng không chỉ trong nước mà nó còn lan một số nơi khác trên thế giới, tiêu biểu là ở khu vực:

a. Nicholas: Yes, we always do. We can't stay mad for long.

b. Nicholas: I argued with my brother this morning.

c. Brandon: That's annoying. Did you make up?

d. Nicholas: He took my favorite jacket without asking.

e. Brandon: Oh no! What was the fight about?

Trong các phát biểu nào sau đây KHÔNG đúng về quy tắc an toàn khi làm việc với nguồn phóng xạ?

Kết thúc văn bản Thông điệp nhân ngày thế giới phòng chống AIDS, 1 – 12 – 2003, tác giả đã đưa ra lời kêu gọi gì?