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【单选题】
下列关于2042Ca的叙述中,错误的是( )
A.
核内质子数40
B.
电子数20
C.
中子数22
D.
质量数42
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参考答案：
举一反三
【单选题】Mary ______ at the bus stop for about an hour when Tom finally came and started to argue about what ______ before.
A.
waited, happened
B.
have waited, has happened
C.
had waited, was happened
D.
had been waiting, had happened
查看完整题目与答案
【单选题】Tom __ started to play pingpong yet.
A.
hasn't
B.
wasn't
C.
haven't
D.
weren't
查看完整题目与答案
【单选题】烷化剂的临床作用是
A.
解热镇痛
B.
抗癫痫
C.
抗肿瘤
D.
降血脂
查看完整题目与答案
【单选题】管理方格图中,理想的领导方式是
A.
1.9
B.
9.1
C.
1.1
D.
9.9
查看完整题目与答案
【单选题】The old man started living in the old house ______Tom was born.
A.
as soon as
B.
long, long before
C.
soon after
D.
years after
查看完整题目与答案
【单选题】The reason why Tom started his AWeber is that _______.
A.
he tried to create tools for effective email follow up
B.
sales experts around the world asked him to help
C.
he tried to build the trust among the small businesses
D.
he wanted to help business owners do business online
查看完整题目与答案
【判断题】领导力方格图中对生产和人都高度重视的坐标点位于（5，5），是最理想的管理状态，称谓团队式管理。
A.
正确
B.
错误
查看完整题目与答案
【单选题】男性航空安全员执照持有人超过（）周岁，应注销执照。
A.
50
B.
55
C.
60
D.
45
查看完整题目与答案
【单选题】Tom took out a piece of paper he and started reading in a clear tone.
A.
was preparing
B.
would prepare
C.
have prepared
D.
had prepared
查看完整题目与答案
【单选题】在△ABC中，若 ，则A的为 [     ]
A.
30°或120°
B.
30°
C.
60°或120°
D.
60°
查看完整题目与答案
相关题目：
【单选题】Mary ______ at the bus stop for about an hour when Tom finally came and started to argue about what ______ before.
A.
waited, happened
B.
have waited, has happened
C.
had waited, was happened
D.
had been waiting, had happened
查看完整题目与答案
【单选题】Tom __ started to play pingpong yet.
A.
hasn't
B.
wasn't
C.
haven't
D.
weren't
查看完整题目与答案
【单选题】烷化剂的临床作用是
A.
解热镇痛
B.
抗癫痫
C.
抗肿瘤
D.
降血脂
查看完整题目与答案
【单选题】管理方格图中,理想的领导方式是
A.
1.9
B.
9.1
C.
1.1
D.
9.9
查看完整题目与答案
【单选题】The old man started living in the old house ______Tom was born.
A.
as soon as
B.
long, long before
C.
soon after
D.
years after
查看完整题目与答案
【单选题】The reason why Tom started his AWeber is that _______.
A.
he tried to create tools for effective email follow up
B.
sales experts around the world asked him to help
C.
he tried to build the trust among the small businesses
D.
he wanted to help business owners do business online
查看完整题目与答案
【判断题】领导力方格图中对生产和人都高度重视的坐标点位于（5，5），是最理想的管理状态，称谓团队式管理。
A.
正确
B.
错误
查看完整题目与答案
【单选题】男性航空安全员执照持有人超过（）周岁，应注销执照。
A.
50
B.
55
C.
60
D.
45
查看完整题目与答案
【单选题】Tom took out a piece of paper he and started reading in a clear tone.
A.
was preparing
B.
would prepare
C.
have prepared
D.
had prepared
查看完整题目与答案
【单选题】在△ABC中，若 ，则A的为 [     ]
A.
30°或120°
B.
30°
C.
60°或120°
D.
60°
查看完整题目与答案
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