皮皮学，免费搜题
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【判断题】
餐厅、酒吧等餐饮营业点面对面为客人提供的服务称后台服务。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】The teacher asked a very difficult question. It was Ted who finally _____ a good answer.
A.
came up with
B.
had raised
C.
went through with
D.
put up with
【简答题】将句子改写为问句。 You can answer the phones. ________________________
【简答题】In an American classroom, a Chinese girl was asked to answer a question. She stood up and smiled, without any sound. The American teacher looked at himself and didn’t see anything funny. So he ...
【多选题】关于装配图上的零件序号编写，下面哪一项是错误的？
A.
零件指引线可以多次弯折，以避开视图投影或其他标注。
B.
零件序号编写应横平竖直，按顺时针或逆时针顺序排列。
C.
零件序号编写应比图中尺寸数字大一号或两号。
D.
一组紧固件或装配关系清楚的零件组可采用公共指引线。
E.
为了排列美观清晰，指引线尽可能沿45度或135度方向画出。
F.
各指引线不允许相交。
G.
指引线引出端只能是箭头。
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