Trong không gian , cho mặt phẳng . Vectơ nào dưới đây không phải là một vectơ pháp tuyến của ?

Read the following advertisement 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 1 to 6. 

HASTAG ACTIVISM - WORTH CLICKING ON?

Platforms like Facebook and Twitter are being used more and more to ___(1)___ awareness of social issues and ___(2)___ for good causes. There have been several examples of ___(3)___ campaigns in recent years. For instance, the #IceBucketChallenge proved a viral success in raising awareness and funds ___(4)___ ALS, a disease that ___(5)___. Not only did people all over the world post videos of themselves tipping a bucket of iced water over their heads, ___(6)___ they also nominated other people to do the challenge, as well as donating to the Association.

(Adapted from Friends Global)

Cuộc Cách mạng Tân Hợi ở Trung Quốc (năm 1911) đã

Biện pháp nào sau đây là phù hợp giúp nhà máy tăng sản lượng mà không cần tăng số lượng nhân công?

Read of the following leaflet 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 7 to 12.

Different Paths, One Journey: Celebrating Humanity Together

A Global Cultural Festival

Join Our Celebration

Some people like busy city life, while (7)_________ enjoy quiet country living. We want to bring people together and help them (8)_________ each other.

The festival will show many (9)_________ of music from around the world. (10)_________ our plan, the event will last for three days.

The party will have many (11)_________ and fun activities for everyone. (12)_________ of the food will be there, with some of the dishes from different countries.

Things To Do:

Try foods from different countries

Watch dance shows

Learn simple words in new languages

Make friends from other places

Play games from around the world

Contact: hello@festival.org | 555-1234

"We are different but we are friends!"

Một điện trở 4 vòng màu có thứ tự các màu như hình sau.

Giá trị của điện trở là

Các chủ thể tiêu dùng cần phải có những trách nhiệm gì khi tham gia vào hoạt động kinh tế?

Tìm giá trị của m để $A=\left(m-1; 2\right]$ là tập con của tập $B=\left(0; m+9\right).$

Yếu tố cốt lõi trong hoạt động bảo tồn di sản là gì?

Loại công cụ nào gắn liền với nền văn minh thông tin?

Phép gán nào sau đây là đúng?

Để chuẩn bị cho các tiết mục văn nghệ, lớp 10B cử ra 12 bạn tham gia tiết mục múa và 7 bạn vào tiết mục hát. Biết rằng có 3 bạn tham gia cả hai tiết mục và 22 bạn không tham gia văn nghệ. Số học sinh lớp 10B là?

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 28 to 34. Foot-racing is a popular activity in the United States. It is seen not only as a competitive sport but also as a way to exercise, to enjoy the camaraderie of like-minded people, and to donate money to a good cause. Though serious runners may spend months training to compete, other runners and walkers might not train at all. Those not competing to win might run in an effort to beat their own time or simply to enjoy the fun and exercise. People of all ages, from those of less than one year (who may be pushed in strollers) to those in their eighties, enter into this sport. The races are held on city streets, on college campuses, through parks, and in suburban areas, and they are commonly 5 to 10 kilometers in length. The largest footrace in the world is the 12-kilometer Bay to Breakers race that is held in San Francisco every spring. This race begins on the east side of the city near San Francisco Bay and ends on the west side at the Pacific Ocean. There may be 80,000 or more people running in this race through the streets and hills of San Francisco. In the front are the serious runners who compete to win and who might finish in as little as 34 minutes. Behind them are the thousands who take several hours to finish. In the back of the race are those who dress in costumes and come just for fun. One year there was a group of men who dressed like Elvis Presley, and another group consisted of firefighters who were tied together in a long line and who were carrying a fire-hose. There was even a bridal party, in which the bride was dressed in a long white gown and the groom wore a tuxedo. The bride and groom threw flowers to bystanders, and they were actually married at some point along the route.

Which of the following is NOT mentioned in this passage?