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【单选题】
如果 成立，则事件A与B为对立事件。
A.
B.
C.
且
D.
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参考解析：
知识点：
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【单选题】My son, Johnny, opened a new restaurant, and on the opening day I helped out in the kitchen. By mid-morning, I noticed that the cakes we had ordered hadn't come. Johnny and I decided not to tell it to...
A.
the baker next door came to help with the opening
B.
the new restaurant did not prepare all its foods
C.
the son and the daughter served at the tables
D.
the customers enjoyed the cakes very much
查看完整题目与答案
【单选题】图4-80所示的是查询设计视图的“设计网格部分,从此部分所示内容中判断欲创建的查询是()。
A.
删除查询
B.
生成表查询
C.
选择查询
D.
更新查询 图4-80查询设计视图的“设计网格”
查看完整题目与答案
【单选题】I could have helped him out, to tell the truth, I _____ too busy.
A.
am
B.
was
C.
have been
D.
had been
查看完整题目与答案
【单选题】滴定管读数时,读到小数点后第( )位?
A.
1
B.
2
C.
3
D.
4
查看完整题目与答案
【单选题】I was very______ for him because he helped me out of trouble.
A.
grateful
B.
calm
C.
loose
D.
worried
查看完整题目与答案
【单选题】按照操作方式划分,Windows XP系统相当于________。
A.
分布式系统
B.
批处理系统
C.
实时系统
D.
分时系统
查看完整题目与答案
【单选题】在实验中,滴定管读数时,应估读到小数点后第()位
A.
一
B.
二
C.
三
D.
四
查看完整题目与答案
【判断题】滴定管读数时需要估读到小数点后第二位。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Heave is motion along the ______.
A.
longitudinal axis
B.
transverse axis
C.
centerline axis
D.
vertical axis
查看完整题目与答案
【单选题】I’ll do everything I can _______ you out.
A.
helping
B.
help
C.
helped
D.
to help
查看完整题目与答案
相关题目：
【单选题】My son, Johnny, opened a new restaurant, and on the opening day I helped out in the kitchen. By mid-morning, I noticed that the cakes we had ordered hadn't come. Johnny and I decided not to tell it to...
A.
the baker next door came to help with the opening
B.
the new restaurant did not prepare all its foods
C.
the son and the daughter served at the tables
D.
the customers enjoyed the cakes very much
查看完整题目与答案
【单选题】图4-80所示的是查询设计视图的“设计网格部分,从此部分所示内容中判断欲创建的查询是()。
A.
删除查询
B.
生成表查询
C.
选择查询
D.
更新查询 图4-80查询设计视图的“设计网格”
查看完整题目与答案
【单选题】I could have helped him out, to tell the truth, I _____ too busy.
A.
am
B.
was
C.
have been
D.
had been
查看完整题目与答案
【单选题】滴定管读数时,读到小数点后第( )位?
A.
1
B.
2
C.
3
D.
4
查看完整题目与答案
【单选题】I was very______ for him because he helped me out of trouble.
A.
grateful
B.
calm
C.
loose
D.
worried
查看完整题目与答案
【单选题】按照操作方式划分,Windows XP系统相当于________。
A.
分布式系统
B.
批处理系统
C.
实时系统
D.
分时系统
查看完整题目与答案
【单选题】在实验中,滴定管读数时,应估读到小数点后第()位
A.
一
B.
二
C.
三
D.
四
查看完整题目与答案
【判断题】滴定管读数时需要估读到小数点后第二位。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Heave is motion along the ______.
A.
longitudinal axis
B.
transverse axis
C.
centerline axis
D.
vertical axis
查看完整题目与答案
【单选题】I’ll do everything I can _______ you out.
A.
helping
B.
help
C.
helped
D.
to help
查看完整题目与答案