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【单选题】
有的小学生在学习英语字母“t”时,常常会发出汉语拼音“t”的音。造成这种干扰现象的原因是( )。A.
前摄抑制
B.
倒摄抑制
C.
双向抑制
D.
消退抑制
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举一反三
【单选题】When does flight 1250 leave?
A.
It leaves at 4:30 p.m.
B.
It is leaving now.
C.
It leaves tomorrow.
【单选题】除工艺原因外,柴油机气缸套与活塞环工作表面间油膜变薄或遭到破坏,是由于_________等因素造成。1.润滑不良2.活塞运动装置的对中不良3.冷却不良4.超负荷5.工作表面粗糙度低
A.
①②④⑤
B.
①④⑤
C.
①②③④
D.
①②③
【单选题】柴油机气缸套产生拉缸工艺上的原因是___________是造成。 1.润滑不良2.工作表面的粗糙度低3.超负荷4.气缸套内圆表面圆度误差过大5.活塞运动装置对中性差
A.
②⑤
B.
①④⑤
C.
①②③④
D.
①②④
【单选题】When will the man 's flight leave?
A.
At 5: 00 p.m.
B.
At 8: 00 a.m.
C.
At 8: 00 p. m.
【简答题】Flight AF033 leave Paris at 12:30 on Tuesday,12th December and arrives in Montreal at 13:55 on the same day.What is the total transport time?
【单选题】John _______ for London this afternoon and his flight _______ off at 18:20.
A.
is about to leave; will take
B.
is leaving; takes
C.
is going to leave; is taking
D.
is to leave; is about to take
【单选题】At what time does the flight to London leave?
A.
7: 00 A.M.
B.
10: 20 A.M.
C.
2: 30 P.M.
D.
5: 00 P.M.
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