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【判断题】
直流电机中，换向极的作用是改善换向，所以只要装置换向极起到改善换向的作用。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】The students are highly active. The students attend the art school.
【简答题】The students attend the ___________ (apprentice) after school and during summer programs.
【单选题】About _____ of the students attend the meeting.
A.
one three
B.
first three
C.
first third
D.
one thired
【单选题】检测喷油器电路时,拔掉喷油器插头,打开点火开关测量线束,技师甲说电源线应该有12V电压,技师乙说另一根线应该搭铁,请问谁的说法正确。( )
A.
甲正确
B.
乙正确
C.
甲、乙都对
D.
甲、乙都错
【简答题】The students attend the __________( apprentice) after school and during summer.
【单选题】About —— of the students attend the meeting.
A.
two three
B.
two thirds
C.
two. third
【多选题】检测喷油器电路时,拔掉喷油器插头,点火开关打开测量线束,技师甲说电源线应该有12V电压,技师乙说另一根线应该搭铁,请问谁的说法正确
A.
甲正确
B.
乙错误
C.
甲正确、乙错误
D.
甲、乙都对
【单选题】It has been announced recently that all the schools ________ not have the students attend school if the students have high temperatures. [ ]
A.
need
B.
shall
C.
could
D.
ought to
【单选题】---By the way, how many of us can attend the meeting? ---The number of the students to attend the meeting _____ fifty.
A.
is
B.
has
C.
are
D.
have
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