A. understand more about the distribution of the chemical elements
B. develop the electron microscope later on
C. discover single-celled plants and animals they had never seen before
D. see viruses directly
Giải thích:
Theo bài đọc, việc phát minh ra kính hiển vi ánh sáng nhìn thấy đã cho phép các nhà khoa học ________.
A. hiểu thêm về sự phân bố của các nguyên tố hóa học
B. phát triển kính hiển vi điện tử sau này
C. khám phá những loài thực vật và động vật đơn bào mà chúng chưa từng thấy trước đây
D. xem vi rút trực tiếp
Thông tin: The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single-celled plants and animals.
Tạm dịch: Việc phát minh ra kính hiển vi có thể nhìn thấy ánh sáng vào cuối thế kỷ 16 đã mang đến một vương quốc của những động thực vật đơn bào chưa được biết đến trước đây.
Chọn C.
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.