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【单选题】
下列命题：①当x＜0时， - 2 x 在实数范围内有意义．②当x＜2时， (x-1) 2 =1-x．③ 2 -1的倒数是 2 +1．④若 x 2 =x，则x一定是非负数．其中正确的有多少个（ ）A.
1个
B.
2个
C.
3个
D.
4个
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反馈参考答案：
举一反三
【简答题】建设单位在工程档案资料中应有哪些具体工作?
【单选题】But as John became more and more successful, _____ enjoying his wealth, he began feeling troubled by his luxurious life. [ ]
A.
ahead of
B.
apart from
C.
in place of
D.
instead of
【单选题】Because of air pollution, more and more people ______ live in the country ______ in the city.
A.
would rather to ... than
B.
would rather ... than
C.
would rather ..: than to live
D.
would rather to... than to live
【单选题】当出针后,局部出血青肿明显时,下面那种处理方法是正确的 ( )
A.
先冷敷，再热敷
B.
先让病人平卧，再热敷
C.
先热敷，再揉按
D.
先按摩，再冷敷
E.
先用针刺激 青肿处 ，再冷敷
【单选题】( ) 2. --- How are you feeling now? --- I’m feeling ___ worse. A. more B. even C. much more
A.
more
B.
even
C.
much more
【单选题】Feeling more and more pressure from the environment _______, the government has decided to clos
A.
117. Feeling more and more pressure from the environment _______, the government has decided to close down the factories pouring out poisonous chemicals. A．polluted
B.
having polluted
C.
being polluted
D.
having been polluted
【单选题】Now pandas have _____ land to live on. [ ]
A.
more and more
B.
less and less
C.
bigger and bigger
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