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【单选题】
下列焊接方法中,( )可不需另加焊接材料便可实现焊接。A.
埋弧自动焊
B.
电阻焊
C.
CO2气体保护焊
D.
氩弧焊
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
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【简答题】维生素 (1)功能:可以调节_________,预防疾病,维持身体健康。 (2)存在:__________、__________等食物中富含维生素。 (3)缺乏时后果:缺乏维生素A会引起__________;缺乏维生素C会引起 _________。
【简答题】简述冲突规范的发展趋势
【单选题】I prefer a flat in Shuangyashan to ______ in Jiamusi, because I want to live near my Mom’ s.
A.
one
B.
that
C.
it
D.
this
【单选题】–Mom, please give metwo(). I want to makevegetablesalad.– OK. Here you are.
A.
tomato
B.
tomatoes
C.
tomatos
【单选题】—Sally, why do you want to buy a new skirt this weekend? —Mom, the old skirt is ______ small for me. [ ]
A.
too much
B.
very much
C.
much too
D.
many too
【单选题】The airlines are mom and more nervous, and they want the problem be considered by IATA, a United Nations body.
A.
Y
B.
N
C.
NG
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