Mark the letter A, B, c, or D to indicate the correct answer to each of the following questions.

Câu hỏi

The smallest _____________ are about 0.4 micron in diameter.

A. animals

B. species

C. bacteria

D. diseases

Đáp án
C. bacteria

Câu hỏi thuộc Bài tập:

E11-GS-Unit 1- Practice 4