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【单选题】
鉴别氨基酸是否存在常用的试剂是A.
双缩尿试剂
B.
水合茚三酮
C.
菲林试剂
D.
尿素
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【简答题】听下面一段材料，回答第1-3题。 1. Why can’t the woman see more? A. Because she’ll be in Germany as soon as possible. B. Because she’ll get familiar with the employees. C. Because she has to be in Phoenix tomorrow. ...
【单选题】M: You look a bit worried, Jane. What’s the matter? W: I can’t seem to wake up every morning. What is the problem with the woman?
A.
She wakes up too early.
B.
She stays up far into the night.
C.
She feels it difficult to get up every morning.
D.
She likes to get up early.
【单选题】M: You look a bit worried, Jane. What’s the matter? W:I can’t seem to wake up every morning. What is the problem with the woman?
A.
She wakes up too early.
B.
She stays up far into the night
C.
She feels it difficult to get up every morning.
D.
She like to get up early
【单选题】The old woman can’t hope to _________ her cold in a few days .
A.
get over
B.
get out
C.
get away
D.
get off
【简答题】The woman can’t get a _________ unless she has had an account with the bank for __________.
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