Lately some scientists are experimenting _____ white mice to _____ this kind of medicine.

A. on, try on
B. with, test on
C. on, test out
D. with, carry out
相關(guān)習(xí)題

科目：高中英語 來源：0106 期末題 題型：單選題

Lately some scientists are experimenting _____ white mice to _____ this kind of medicine.
[     ]
A. on, try on
B. with, test on
C. on, test out
D. with, carry out

查看答案和解析>>

科目：高中英語 來源： 題型：

Lately some scientists are experimenting ___________ white mice to ____________ this kind of medicine.

A.on,try on    B.with, test on   C.on ,test out   D.with,carry out

查看答案和解析>>


同步練習(xí)冊答案