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【单选题】
我国西北地区防御干旱应采取的有效措施是A.
进行人工增雨
B.
选择耐旱作物，改进耕作制度
C.
开采地下水
D.
增加降水量
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举一反三
【简答题】applause collision coarse surround betray rouse spark incident execute postpone clumsy extraordinary relief immense doubtful
【简答题】A. nurse B. surround C. turn D. hurt
【单选题】_____ he came, he would bring us a lot of flowers.
A.
Every times
B.
one time
C.
Every time
D.
Once a time
【简答题】A. supper B. suppose C. surround D. support
【简答题】surround
【单选题】He started to work dilligently _____ he came up with the idea of hybrid rice for the first time in the 1960’s.
A.
at once
B.
the moment
C.
for the moment
D.
in no time
【单选题】_______ the manager came to Beijing on business, he would visit his old friends there. [ ]
A.
Every time
B.
Many times
C.
In no time
D.
All the time
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