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【单选题】
下面哪个氨基酸一出现, α-螺旋结构就会产生结节?()A.
Leu
B.
Ser
C.
Pro
D.
Met
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皮皮学刷刷变学霸
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【简答题】I am very sorry for your (refuse)________to come to my birthday party.
【单选题】—_____ is the ticket? —It's five yuan. [ ]
A.
How many
B.
How long
C.
How far
D.
How much
【单选题】Tom, I am very sorry for ____ you when you are busy with your work.
A.
interrupt
B.
interrupting
C.
being interruped
D.
to interrupt
【简答题】一个西瓜切10刀,最多能切出几块?
【单选题】—__________ is that computer? —It's 200 dollars. [ ]
A.
What
B.
What much
C.
How
D.
How much
【单选题】I am very sorry for _____ for so long.
A.
keep you waiting
B.
keep you wait
C.
waiting for you
D.
having kept you waiting
【简答题】-___ is that white bag? ---It’s nine dollars. A How many B How much C How old D What kind
【单选题】-___ is that white bag? -It’s nine dollars. [ ]
A.
How many
B.
How much
C.
How old
D.
What kind
【单选题】Tom. I am very sorry for you when you are busy with your work.
A.
interrupt
B.
interrupting
C.
being interrupted to
D.
interrupted
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