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读我国南方某低山丘陵区某小流域水循环示意图： 1．由于人类某种活动使蒸腾作用显著减弱时，可能直接导致该区域 [ ] A．降水增加 B．地表径流变化增大 C．水汽输送量增加 D．地下径流增加 2．欲增加该区域年降水量，可行性较差的措施是 [ ] A．封山育林 B．退耕还林 C．增加水汽输送量 D．修建小型水库
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【简答题】选词填空：For many Americans, 2013 ended with an unusually bitter cold spell.Questions 36 to 45 are based on the following passage. For many Americans, 2013 ended with an unusually bitter cold spell. Novem...
【判断题】计数值存放的位置：计数时，存放计数数值的寄存器分别为：T0为TL0、TH0；T1为TL1、TH1；T2为T2L、T2H；T3为T3L、T3H；T4为T4L、T4H。
A.
正确
B.
错误
【简答题】He failed in the examination, __________ made his father very angry.
【单选题】Spelling Bee is a contest ________ competitors, usually children, are asked to spell as many words as possible.
A.
which
B.
where
C.
what
D.
when
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