皮皮学，免费搜题
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【简答题】
相互啮合的两齿轮的接触斑点,是用(1)来检验或通过接触擦亮痕迹来检验 。
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【简答题】A．To the library, B．To the department store. C．To the classroom. D．To the can.
【单选题】The woman asked the department store to send the following items EXCEPT
A.
a rug.
B.
two table lamps.
C.
dark blue curtains.
D.
several cushions.
【简答题】A．To the library. B．To the classroom. C．To the department store. D．To the can.
【简答题】A．In the clinic. B．In the post office. C．In the grocery. D．In the department store.
【单选题】Where are the two speakers?
A.
In the Department store.
B.
In the Supermarket.
C.
In the Bargain market.
D.
In the Shopping mall.