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【单选题】
在下列氨基酸中,可经转氨作用生成草酰乙酸的氨基酸是?( )A.
谷氨酸
B.
丙氨酸
C.
天冬氨酸
D.
脯氨酸
E.
苏氨酸
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【简答题】Fill in the blanks with appropriate articles. 1. Is there ________ restaurant near ______ the house you live in? 2. We must help _______ needy. 3. ________ daughter of my friend is __________ accompli...
【简答题】n. 温度计_____
【单选题】The impact of Thoreau's' On the Duty of Civil Disobedience' might not have been so far- reaching _______ , for Elizabeth Peabody, who dared to publish the controversial essay.
A.
it not having been
B.
it is not being
C.
had it not been
D.
it it not being
【简答题】怎样理解林达尔均衡?
【简答题】Their impact might not be measurable, but they have a deep ___(symbol) meaning.
【单选题】Hydroelectric facilities might have a major impact on ( ) .
A.
aquatic ecosystems
B.
birds
C.
bats
D.
polar bears
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