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【判断题】
在做滴定操作基本练习实验时,“ 不慎从锥形瓶中溅出一滴溶液 ”,认为这是过失误差,但可以不重做实验!
A.
正确
B.
错误
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【单选题】Hardly had I turned around the corner and______my dog when he dashed towards me.
A.
saw
B.
seen
C.
seeing
D.
see
【简答题】等比数列 5 , 25 , 125 , 625 , ... ,的公比q= ,首项 = ,通项公式 = , = ;
【单选题】砖过梁上与过梁呈()角的三角形范围内不得留设脚手架眼。
A.
300
B.
450
C.
600
D.
900
【简答题】完形填空。 I saw the old man, with his untidy clothes and messy hair, as he dashed between the rows of the department store. He was trying to be ordinary but he was hard not to 1 . He 2 the saleswoman and ...
【简答题】简述经营者的信息提供义务。1.简述经营者的信息提供义务。
【简答题】跨界旅游有 和 两种主要渠道。
【单选题】I got out of the taxi, _____ the fare and dashed into the station.
A.
paid
B.
paying
C.
to pay
D.
having paid
【单选题】等比数列1,5,25,125...的首项和公比分别为( )
A.
5和1
B.
1和25
C.
5和5
D.
1和5
【简答题】I saw the old man, with his untidy clothes and messy hair, as he dashed between the rows of the department store. He was trying to be ordinary but he was hard not to __21 . He 22 the saleswoman and wi...
【单选题】I got out of the taxi, ____ the fare and dashed into the station.
A.
paying
B.
paid
C.
to pay
D.
having paid
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