皮皮学，免费搜题
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搜题
【判断题】
我们在实验当中使用的光栅,它的光栅常数是1/300。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】---Thanks for your help , but can you do me one more favor , please?
A.
Just a minute
B.
My pleasure
C.
That’s all right
D.
At your service
【单选题】A:Thanks for your help. B:
A.
It doesn’t matter
B.
It’s my pleasure
C.
Oh,no, l didn’t help you a lot
【单选题】—Thanks for your help. What shall I do for you________? —You would have done the same if you were me. [ ]
A.
in order
B.
in return
C.
in vain
D.
in advance
【单选题】-Thanks for you help. - ________.
A.
Forget it.
B.
Don't worry.
C.
You are very welcom.
【简答题】同义句改写，每空一词。 Thanks for your help. Thank you me.
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