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【多选题】
下列电路为三相笼型电机单向旋转连续控制电路,当按下启动按钮SB2时,交流接触器KM不工作,试分析可能的故障原因。A.
熔断器FU1、FU2烧毁或接触不良
B.
电机卡住故障
C.
按钮SB1、SB2损坏或触点接触不良
D.
交流接触器故障
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【简答题】中国青年团团徽，是经党中央审定批准，于 1959 年5月4日由_____颁布的。
【单选题】Two ______ would come to the village.
A.
woman-doctors
B.
women doctor
C.
women doctors
D.
woman doctors
【简答题】中国青年团团徽，是经党中央审定批准，于__年5月4日由共青团中央颁布的。 A.1927 B.1949 C.1950 D.1959
【单选题】---How soon will Harry be back ？ -----He said he would come back _____ two days.
A.
of
B.
in
C.
about
D.
for
【单选题】A: Doctor Smith is engaged on Wednesday. Would you like to come on Thursday? B:______.
A.
Thursday would be fine.
B.
See you then.
C.
Thank you very much. Good-bye.
D.
It's very kind of you.
【单选题】He had to be called two or three times he would come to his dinner.
A.
before
B.
when
C.
until
D.
as
【简答题】If you use a WYSIWYG editor to design your HTML document, you needn’t write the in a plain-text file.
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