| 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 |
科目：高中英語 來源：0106 期末題 題型：單選題
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
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