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【单选题】
NewPolo豪华版外后视镜增加了（）功能，可方便收折，有效降低或避免刮蹭事故的发生。
A.
电加热
B.
电动折叠
C.
电动调节
D.
双曲率
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举一反三
【单选题】A businesswoman got into a taxi in midtown. Because it was the rush hour and she was in a hurry to catch a (33) , she suggested a quick way to (34) it. "I’ve been a taxi driver for 15 years!" the driv...
A.
[A] problem
B.
importance
C.
key
D.
result
【单选题】空气中氧气的正常值为21%，当氧气含量降低到12%—15%时便会造成呼吸急促、头痛、眩晕和困乏，当氧气含量低到( )时，便会使人虚脱甚至死亡。
A.
6%—8%
B.
9%—11%
C.
11%—13%
D.
13%—16%
相关题目：
【单选题】A businesswoman got into a taxi in midtown. Because it was the rush hour and she was in a hurry to catch a (33) , she suggested a quick way to (34) it. "I’ve been a taxi driver for 15 years!" the driv...
A.
[A] problem
B.
importance
C.
key
D.
result
【单选题】空气中氧气的正常值为21%，当氧气含量降低到12%—15%时便会造成呼吸急促、头痛、眩晕和困乏，当氧气含量低到( )时，便会使人虚脱甚至死亡。
A.
6%—8%
B.
9%—11%
C.
11%—13%
D.
13%—16%
参考解析：
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