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【简答题】
楔形薄层的干涉条纹可用来检验机械工厂里作为长度标准的端规。如下图所示，G 1 是待检规，G 2 是同一标定长度的标准规，T是放在两规之上的透明玻璃板。假设在波长λ=550nm的单色光垂直照射下，玻璃板和端规之间的楔形空气层产生间距为2.5mm的条纹，两端规之间的距离为100mm，问两端规的长度之差为多少?
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举一反三
【单选题】在以下菜肴中,属于谭家菜的菜肴是()
A.
糟鹅掌
B.
黄焖鱼翅
C.
炒豆腐脑
D.
怡红祝寿
查看完整题目与答案
【单选题】在以下菜肴中,属于谭家菜的菜肴的是()。
A.
荷包里脊
B.
燕菜一品锅
C.
红烧鱼翅
D.
八宝豆腐
查看完整题目与答案
【单选题】阅读材料，回答题。 How does Science Proceed? How exactly does science work? How do scientists go about "doing" science? Ordinarily we think science proceeds in a straightforward way. Ideally, scientists make o...
A.
The research methods used by scientists
B.
Observation and human perception variation
C.
The relation between hypothesis and observation
D.
The human perceptual mechanism
查看完整题目与答案
【简答题】听力原文：How does a person rise to the top in a company? How does a person rise to the top in a company? The way to the top lies through ______ positions.
查看完整题目与答案
【单选题】Can you tell me ________ ？
A.
how does ORBIS get enough money
B.
how ORBIS does get enough money
C.
how ORBIS get enough money does
D.
how ORBIS gets enough money
查看完整题目与答案
【单选题】在以下菜肴中,属于谭家菜的菜肴是
A.
荷包里脊
B.
燕菜一品锅
C.
红烧鱼翅
D.
八宝豆腐
查看完整题目与答案
【判断题】材料的体积密度是指材料在自然堆积状态下,单位体积的质量。( )
A.
正确
B.
错误
查看完整题目与答案
【简答题】听力原文：How does the couple deal with work in a few families? How does the couple deal with work in a few families? The parents ______.
查看完整题目与答案
【单选题】在以下菜肴中,属于谭家菜的菜肴是()
A.
糟鹅掌
B.
扒大乌参
C.
炒豆腐脑
D.
怀抱鲤
查看完整题目与答案
【单选题】________without friends ________ the most difficult challenge for Jack while living on the island. A . How does he survive; are B . How to survive; are C . How does he survive; is D . How to survive; ...
A.
How does he survive; are
B.
How to survive; are
C.
How does he survive; is
D.
How to survive; is
查看完整题目与答案
相关题目：
【单选题】在以下菜肴中,属于谭家菜的菜肴是()
A.
糟鹅掌
B.
黄焖鱼翅
C.
炒豆腐脑
D.
怡红祝寿
查看完整题目与答案
【单选题】在以下菜肴中,属于谭家菜的菜肴的是()。
A.
荷包里脊
B.
燕菜一品锅
C.
红烧鱼翅
D.
八宝豆腐
查看完整题目与答案
【单选题】阅读材料，回答题。 How does Science Proceed? How exactly does science work? How do scientists go about "doing" science? Ordinarily we think science proceeds in a straightforward way. Ideally, scientists make o...
A.
The research methods used by scientists
B.
Observation and human perception variation
C.
The relation between hypothesis and observation
D.
The human perceptual mechanism
查看完整题目与答案
【简答题】听力原文：How does a person rise to the top in a company? How does a person rise to the top in a company? The way to the top lies through ______ positions.
查看完整题目与答案
【单选题】Can you tell me ________ ？
A.
how does ORBIS get enough money
B.
how ORBIS does get enough money
C.
how ORBIS get enough money does
D.
how ORBIS gets enough money
查看完整题目与答案
【单选题】在以下菜肴中,属于谭家菜的菜肴是
A.
荷包里脊
B.
燕菜一品锅
C.
红烧鱼翅
D.
八宝豆腐
查看完整题目与答案
【判断题】材料的体积密度是指材料在自然堆积状态下,单位体积的质量。( )
A.
正确
B.
错误
查看完整题目与答案
【简答题】听力原文：How does the couple deal with work in a few families? How does the couple deal with work in a few families? The parents ______.
查看完整题目与答案
【单选题】在以下菜肴中,属于谭家菜的菜肴是()
A.
糟鹅掌
B.
扒大乌参
C.
炒豆腐脑
D.
怀抱鲤
查看完整题目与答案
【单选题】________without friends ________ the most difficult challenge for Jack while living on the island. A . How does he survive; are B . How to survive; are C . How does he survive; is D . How to survive; ...
A.
How does he survive; are
B.
How to survive; are
C.
How does he survive; is
D.
How to survive; is
查看完整题目与答案
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