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【单选题】
心肌缺氧引起血管扩张的最重要的局部代谢物质是A.
腺苷
B.
前列环素
C.
K+
D.
CO2
E.
H+
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反馈参考答案：
举一反三
【简答题】A．She makes good use of an ad to convince her father. B．She is easily fooled by ads. C．She didn't play much sports before. D．She wants her father's opinion about Adidas shoes.
【单选题】The derivational process, in which an item is converted to a new word class，without the addition of an affix, is called ____________.
A.
compounding
B.
back-formation
C.
functional shift
D.
derivation
【单选题】Offered the position of chairman, Smith _____, preferring to keep his current job. [ ]
A.
decreased
B.
retired
C.
left
D.
declined
【简答题】A．She makes good use of an ad to convince her father. B．She has enough money to buy Adidas shoes herself. C．She wants her father's opinion about Adidas shoes. D．She played many sports at school.
【单选题】According to the news item，Japan’S economic growth in the second quarter was——less than the first quarter．
A.
4 percent
B.
3 percent
C.
0．6 percent
D.
3．4 percent
【简答题】民族同化的过程有完全同化与____同化的分别。
【单选题】If you find this item too difficult to it is advisable to leave as it is and move on to the next one.
A.
work out
B.
work on
C.
work for
D.
work at
【简答题】“失效概率”的英文为
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