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【单选题】
在310nm时, 如果溶液的百分透射比是90%,在这一波长时的吸收值是（ ）A.
0.05
B.
0.1
C.
0.9
D.
1
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皮皮学刷刷变学霸
举一反三
【单选题】If I _______ what the teacher says, I'll go and ask him for help. [ ]
A.
won't understand
B.
am not understand
C.
doesn't understand
D.
don't understand
【单选题】Don't blame him for this I am responsible ______ what has happened.
A.
in
B.
to
C.
for
D.
with
【单选题】— I telephoned him twice and I couldn't get through to him. — I think that the line might have been out of order, _____ ? [ ]
A.
don't you
B.
wasn't it
C.
mightn't it
D.
hadn't it
【单选题】I am sure I can ______ him into letting us stay in the hotel for the night.
A.
speak
B.
say
C.
talk
D.
tell
【单选题】I _____ to him. He is too serious. [ ]
A.
didn't use to talk
B.
am not used to talking
C.
am not used to talk
D.
didn't use to talking
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