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传感器的功能是通过检测排气中氧离子浓度,获得混合气的空燃比信号,并将该信号转变为电信号输入发动机 ECU, ECU 根据氧传感器信号,对喷油时间进行修正,实现空燃比反馈控制,使发动机能够得到最佳浓度的混合气。
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【单选题】Hurry up. There is_____time left.
A.
Few
B.
little
C.
a few
D.
a little
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【判断题】衡山又名“寿岳”,为花岗岩山体,72峰挺拔巍峨,海拔1300.2米的祝融峰是衡山最高峰,它也是五岳的最高峰。
A.
正确
B.
错误
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【单选题】下列哪项不是宫颈或阴道上药的适应证
A.
滴虫性阴道炎
B.
阴道假丝酵母菌病
C.
子宫颈癌
D.
细菌性阴道病
E.
宫颈糜烂
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【单选题】Hurry up. There is...time left.
A.
a little
B.
little
C.
few
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【单选题】W: The movie begins at seven M: We d better hurry up. There ’ s only fifteen minutes left What time is it now?
A.
7:15.
B.
7:00
C.
6:15
D.
6:45
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【单选题】Hurry up. There is little time ________.
A.
leave
B.
leaving
C.
left
D.
to be left
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【判断题】衡山又名“寿岳”,为花岗岩山体,72峰挺拔巍峨,海拔1302米的祝融峰是衡山最高峰,它也是五岳的最高峰。
A.
正确
B.
错误
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【单选题】Hurry up, please. There is only __ time left.
A.
a little
B.
little  c. a few  D. few
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【单选题】–Hurry up. There is only ten minutes left. --You _____ about it. The station is not far from here.
A.
don’t need worry
B.
needn’t to worry
C.
don’t need to worry
D.
need not to worry
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【单选题】Hurry up. There is a man outside ______ you.
A.
wait for
B.
waiting for
C.
waiting
D.
wait
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【单选题】Hurry up. There is_____time left.
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【单选题】Hurry up. There is...time left.
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【单选题】W: The movie begins at seven M: We d better hurry up. There ’ s only fifteen minutes left What time is it now?
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【单选题】Hurry up. There is little time ________.
A.
leave
B.
leaving
C.
left
D.
to be left
查看完整题目与答案
【判断题】衡山又名“寿岳”,为花岗岩山体,72峰挺拔巍峨,海拔1302米的祝融峰是衡山最高峰,它也是五岳的最高峰。
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【单选题】–Hurry up. There is only ten minutes left. --You _____ about it. The station is not far from here.
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don’t need worry
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needn’t to worry
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don’t need to worry
D.
need not to worry
查看完整题目与答案
【单选题】Hurry up. There is a man outside ______ you.
A.
wait for
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waiting for
C.
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D.
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查看完整题目与答案