Có ba trường hợp truyền tia sáng qua lăng kính như hình 28.8. Ở các trường hợp nào sau đây, lăng kính không làm tia ló lệch về phía đáy?

A. Trường hợp (1)

B. Các trường hợp (1) và (2)

C. Ba trường hợp (1), (2) và (3).

D. Không trường hợp nào.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 25 to 29. Fill in the appropriate word in question 27

Communication Skills

The first question we might ask is: What can you learn in college that will help you in being an employee? The school teach a (25) ____many things of value to the future accountant, doctor or electrician. Do they also teach anything of value to the future employee? Yes, they teach the one thing that it is perhaps most valuable for the future employee to know. But very few students bother (26) ____it.

This basic is the skill ability to organize and express ideas in writing and in speaking. This means that your success as an employee will depend on your ability to communicate with people and to (27) _____your own thoughts and ideas to them so they will (28) _______understand what you are driving at and be persuaded. Of course, skill in expression is not enough (29) _______itself. You must have something to say in the first place. The effectiveness of your job depends much on your ability to make other people understand your work as they do on the quality of the work itself.

A. interpret

B. give out

C. transfer

D. present

Bạn đó phải đổ nc đá vào lòng cốc trên, ngâm cốc dưới vào nc nóng. Khi đó, cốc trên sẽ co lại, cốc dưới sẽ nở ra. Vậy ta có thể tách đc 2 cốc chồng khít vào nhau

Chúc bạn học tốt