A. investigations
B. microscopes
C. properties
D. X-rays
Giải thích:
Từ “those” trong đoạn 3 đề cập đến _______.
A. investigations: các nghiên cứu, điều tra
B. microscopes: các kính hiển vi
C. properties: tính chất, đặc tính
D. X-rays: các tia X
Thông tin: Rather, their special properties will make possible investigations that will complement those performed with light- and electron-based instruments.
Tạm dịch: Ngoài ra, những tính chất đặc biệt của chúng sẽ tạo nên những nghiên cứu khả thi cái mà sẽ bổ sung những nghiên cứu được thực hiện với các dụng cụ dựa trên ánh sáng và điện.
Chọn A.
Aristotle believed that everything in the universe were composed of four basic elements: earth, water, air, and fire.
When they give you the contract, please ________ the document before you sign it.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
What ________ at 9 o'clock last night? I phoned you but couldn't get through to you.
The first half of the game was pretty boring because the players did not take enough effort.
Burt and Kevin talked about Burt's absence from the class.
- Burt: "Why didn't you show up for class this morning?"
- Kevin: “__________. You know, I live far from the school."We've been together through ________ in our friendship, and we won't desert each other now.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
The Native Americans would not allow anyone to trespass on their sacred burial ground.
Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.