皮皮学，免费搜题
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【单选题】
根据转速-转矩四象限，电动机在第四象限为（ ）状态A.
反向电动
B.
正向电动
C.
正向制动
D.
反向制动
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】. I just managed to _____ a quick breath before I was sucked under the water by the passing boat.
A.
snatch
B.
scratch
C.
scrape
D.
scan
【简答题】数学资料每本5.35元，王老师和五（1）班41名同学各买一本，共需付多少钱？
【单选题】From the last paragraph we may infer that______.
A.
there is a fear of being sucked in and dragged down by our consumer culture
B.
pleasure-seeking and blind acquisition is popular in our society
C.
one should not default on one's bills
D.
American society is not as secure as people assume
【简答题】Time is like water ed in the sponge.
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