42 Which of the following statements is true? 

(A)The underground sewers have saved more lives than any medical procedure. 

(B)Many old sewers have been neglected and are in dire need of repair. 

(C)Dr. Hernandez and his colleagues made cultures from the mixture of bacteria found in sewer pipes. 

(D)The DNA screening of the samples was focused on bacteria only.

答案:登入後查看
統計: A(27), B(60), C(18), D(3), E(0) #982455

詳解 (共 1 筆)

#2621418
And that, together w...
(共 143 字,隱藏中)
前往觀看
11
0