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【单选题】
阿司匹林的抗血小板聚集作用是通过下列哪项实现的?A.
激活磷脂酶A 2
B.
激活环氧合酶
C.
抑制PGI 2 的生产
D.
减少内源性ADP的释放
E.
减少内源性TXA2的释放
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举一反三
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【单选题】-- ____ have you lived in New York, Jane? -- For about 16 years.
A.
How many
B.
How much
C.
How long
D.
How often
【单选题】Our teacher _________ a report this afternoon. Don’t miss it.
A.
gives
B.
was given
C.
is giving
D.
has given
【单选题】Mother gave Alice 30 dollars. She spends a fifth of the 30 dollars on books, a quarter of the remainder at a hairdresser's and buys a new skirt for 10 dollars. How many dollars does she have now? ()
A.
15
B.
8
C.
16
D.
9
【单选题】----How many new words are there in ________ lesson? ----There are only _________.
A.
five; fifth
B.
fifth; five
C.
the fifth; the five
D.
the fifth; five
【简答题】Read and number. (排序) (1) ( ) How many kites can you see? ( ) Look at my new kite. ( ) I can see 16. ( ) How nice ! (2) ( ) He's my brother. ( ) No , he's a teacher. ( ) Who's tha...
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