专升本APP
升本考编制,就到金标尺!
请使用微信扫描二维码,登录金标尺专升本
A
since
B
before
C
after
D
when
正确答案 :B
解析
【翻译】科学家们称:这种药物能用在人身上之前可能还需要五六年。 [考点]词义辨析 【精析】Bsince:自从,因为,由于;before:在……之前;after:在……之后;when:当……时。根据句意可知,选B。
相关试题
There was so much noise that the speaker couldn’t make himself _____.
We’re talking about the piano and the pianist ( ) were in the concert we attended last night.
If you don’t agree with me, ( ).
The football match was ( ) on account of rain.
If I had remembered ( ) the window, the thief would not have got in.
Tolerance ( ) respecting the opinions of others.
( ) weather may be too hot to the tourists.
She heard a terrible noise, ( ) brought her heart into her mouth.
We could see the stars ( ) well from the top of the mountain.
The chemical factory was torn down ( ) protecting the environment.
Frankfurt, Germany, is one of the most ( ) populated regions in Western Europe.
( ) the obvious differences in size and population, the states of America have many things ( ) common.