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【单选题】
精胺是哪种氨基酸脱羧基作用的产物:A.
His
B.
Tyr
C.
Phe
D.
Met
E.
Arg
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【简答题】中国第二次全国代表大会的中心任务是（）。
【单选题】Passage 1 Just as coughing and sore throat are indications of physical illness, a sense of disorientation and an inability to sleep are symptoms of the psychological illness and culture shock. 1. The ...
A.
losing the sense of direction
B.
having the sense of direction
C.
knowing the direction quite well
D.
having no order
【单选题】Passage 1 Just as coughing and sore throat are indications of physical illness, a sense of disorientation and an inability to sleep are symptoms of the psychological illness and culture shock. 3. The ...
A.
keys
B.
sympathies
C.
indications of illness
D.
synonyms
【简答题】Passage 1 Just a few weeks ago, Lizzie and her kids went off to dinner at some friends’ house, and when they got there, the friends were not home, there was no dinner cooking, and they knew with a dre...
【单选题】Passage 1 Just as coughing and sore throat are indications of physical illness, a sense of disorientation and an inability to sleep are symptoms of the psychological illness and culture shock. 4. The ...
A.
relating to foot
B.
relating to mind
C.
relating to heart
D.
relating to lungs
【单选题】Passage 1 Just as coughing and sore throat are indications of physical illness, a sense of disorientation and an inability to sleep are symptoms of the psychological illness and culture shock. 2. The ...
A.
the state or action of not being able to do something
B.
the state or action of being able to do something
C.
the state of sleeping
D.
the state of being asleep
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