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【单选题】
下面属于3——4岁幼儿数学教育主要内容的是
A.
计数
B.
守恒
C.
测量
D.
10个物体的排序
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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【单选题】用折射率为1.3的透明物质均匀的涂在玻璃上,波长为550nm的光垂直入射时,如要反射光最弱,涂层的最小厚度是:
A.
53nm
B.
106nm
C.
212nm
D.
253nm
查看完整题目与答案
【简答题】用冠词填空,在不需要任何冠词的地方填写"x"。 weather in England can change very quickly. One day last week, we went for walk in country. It's about five miles from my home. When we set out in morning, sky was blue and it ...
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【单选题】The case of the World War Ⅱ shipbuilders with lung cancer is an example of ______.
A.
an occupational cluster
B.
a medical cluster
C.
a radiation cluster
D.
an environmental cluster
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【单选题】职工代表大会因故需要延期换届的,延期时间不得超过( )。
A.
三个月
B.
半年
C.
一年
D.
两年
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【简答题】选词填空 give up, run out, get out of, in control of, take a risk. 1.Don ’ t _______________, It's erous for you to drive so fast 2. I want to help my brother to _________ this big trouble 3. The ener...
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【单选题】与三元催化转化器的转化效率相关的传感器是
A.
车速传感器
B.
氧传感器
C.
水温传感器
D.
节气门位置传感器
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【单选题】用折射率为1.3的透明物质均匀的涂在玻璃(n=1.5)上,波长为550nm的光垂直入射时,如要反射光最弱,涂层的最小厚度是:
A.
53nm
B.
106nm
C.
212nm
D.
253nm
查看完整题目与答案
【单选题】强化发生在预定的若干次反应之后属于( )
A.
固定间隔强化
B.
变化间隔强化
C.
固定比率强化
D.
变化比率强化
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【单选题】下面不属于利用共振为人类服务的例子是
A.
弦乐器
B.
收音机
C.
振动筛
D.
振动棒
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【单选题】Paraphrase : Choose the choice that best explains the meaning of the original sentence. This book contains a totally new outlook that combines the wisdom of the past with scientific knowledge to solve...
A.
Problems of the past and present are solved in this book.
B.
None of today’s problems can be solved without scientific knowledge.
C.
Only by using knowledge of the past and present can we solve problems.
D.
In this book, current knowledge and past wisdom are combined to solve current problems.
查看完整题目与答案
相关题目：
【单选题】用折射率为1.3的透明物质均匀的涂在玻璃上,波长为550nm的光垂直入射时,如要反射光最弱,涂层的最小厚度是:
A.
53nm
B.
106nm
C.
212nm
D.
253nm
查看完整题目与答案
【简答题】用冠词填空,在不需要任何冠词的地方填写"x"。 weather in England can change very quickly. One day last week, we went for walk in country. It's about five miles from my home. When we set out in morning, sky was blue and it ...
查看完整题目与答案
【单选题】The case of the World War Ⅱ shipbuilders with lung cancer is an example of ______.
A.
an occupational cluster
B.
a medical cluster
C.
a radiation cluster
D.
an environmental cluster
查看完整题目与答案
【单选题】职工代表大会因故需要延期换届的,延期时间不得超过( )。
A.
三个月
B.
半年
C.
一年
D.
两年
查看完整题目与答案
【简答题】选词填空 give up, run out, get out of, in control of, take a risk. 1.Don ’ t _______________, It's erous for you to drive so fast 2. I want to help my brother to _________ this big trouble 3. The ener...
查看完整题目与答案
【单选题】与三元催化转化器的转化效率相关的传感器是
A.
车速传感器
B.
氧传感器
C.
水温传感器
D.
节气门位置传感器
查看完整题目与答案
【单选题】用折射率为1.3的透明物质均匀的涂在玻璃(n=1.5)上,波长为550nm的光垂直入射时,如要反射光最弱,涂层的最小厚度是:
A.
53nm
B.
106nm
C.
212nm
D.
253nm
查看完整题目与答案
【单选题】强化发生在预定的若干次反应之后属于( )
A.
固定间隔强化
B.
变化间隔强化
C.
固定比率强化
D.
变化比率强化
查看完整题目与答案
【单选题】下面不属于利用共振为人类服务的例子是
A.
弦乐器
B.
收音机
C.
振动筛
D.
振动棒
查看完整题目与答案
【单选题】Paraphrase : Choose the choice that best explains the meaning of the original sentence. This book contains a totally new outlook that combines the wisdom of the past with scientific knowledge to solve...
A.
Problems of the past and present are solved in this book.
B.
None of today’s problems can be solved without scientific knowledge.
C.
Only by using knowledge of the past and present can we solve problems.
D.
In this book, current knowledge and past wisdom are combined to solve current problems.
查看完整题目与答案