皮皮学，免费搜题
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搜题
【单选题】
当轴上安装的零件要承受轴向,采用 来进行轴向定位,所能承受的轴向力较大。A.
圆螺母
B.
紧定螺钉
C.
弹性挡圈
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
【单选题】What is the conversation mainly about?
A.
The woman’s study.
B.
The woman’s friend.
C.
The woman’s trouble.
【简答题】What is the woman’s job?
【单选题】---What are they ? ---They are .
A.
woman doctors
B.
women doctors
C.
woman’s doctors
D.
women’s doctors
【简答题】What’s the woman?
【简答题】What was in the woman’s missing bag?
【简答题】What is the woman’s reply?