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【单选题】
影响初级线圈通过电流的时间长短的主要因素有A.
发动机转速和温度
B.
发动机转速和蓄电池电压
C.
发动机转速和负荷
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参考解析：
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皮皮学刷刷变学霸
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【单选题】全新EA888第三代发动机是国内首款符合欧VI排放标准的发动机，其较第二代2.0L发动机CO 2 排放降低14%，最大输出功率提高。这款发动机将率先在一汽大众（）车型上采用。
A.
A4
B.
Q5
C.
A6
D.
Magotan
【单选题】I have no idea who stole his wallet. It ______ anyone.
A.
could have been
B.
should have been
C.
must have been
【单选题】The driver who died in the accident could have ________, but he was sent to hospital too late.
A.
cured
B.
recovered
C.
survived
D.
rescued
【简答题】— Who has made a mess in my room? — Who else _______ have done it but your naughty son? A．would B．could C．should D．must
【单选题】-----Who has made a mess in my room? -----Who else it but your naughty son?
A.
could do
B.
could have done
C.
did
D.
had done
【单选题】-- Who do you think _____ such a foolish thing? -- It _____ Tom, but I’m not sure.
A.
could have done; may have been
B.
could have done; must have been
C.
should have done; may be
D.
must have done; might have been
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