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【单选题】
根据支付结算法律制度的规定,开证行、行、议在信用证有效期内收到单据的,开证行可在信用证逾有效期 ( ) 后予以注销。A.
1 个月
B.
2 个月
C.
3 个月
D.
5 个月
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皮皮学刷刷变学霸
举一反三
【单选题】“Was his father very strict with him when he was at school?” “Yes. He had never praised him
A.
_____ he became one of the top students in his grade.”
B.
after
C.
unless
D.
until
E.
when
【单选题】由乙烯推测丙烯与溴水反应时,对反应产物的叙述正确的是
A.
CH2Br—CH2—CH2Br
B.
CH3—CHBr—CH3
C.
CH2Br—CH2Br—CH2
D.
CH3—CHBr—CH2Br
【简答题】双作用叶片泵的转子每旋转一周，完成（）吸油和压油的过程。
【单选题】- Was his father very strict with him when he was at school? - Yes. He has never praised him _______ he became one of the top students in his grade.
A.
after
B.
unless
C.
until
D.
when
【多选题】由乙烯推测丙烯与溴水反应时,对反应产物的叙述正确的是( )。
A.
CH2Br—CH2—CH2Br
B.
CH3—CHBr—CH3
C.
CH3—CH2—CHBr2
D.
CH3—CHBr—CH2Br
E.
CH2Br—CH2Br—CH2
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