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【多选题】
下列关于焊条中间金属丝-焊芯表述正确的是A.
分解出气体保护焊接区域
B.
与焊钳-电源连接，导电形成通路
C.
熔化形成熔渣保护焊接区
D.
熔化形成液态金属，填充焊缝
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【简答题】阅读理解 Every country has its own way of cooking. American people have their way of cooking, don't they? Most people in the United States like fast food, but if you think that American people don't like ...
【简答题】Its basic cooking include soaking and (蒸) .
【简答题】Every country has its own way of cooking．Ameri can people have their own way of cooking，don't they?Most people in the United states like fast food，but if you think that American people don't 1 ike co...
【单选题】The restaurant is frequently______by tourists because of its famous cooking.
A.
patronized
B.
serviced
C.
utilized
D.
congregated
【判断题】Prototype is the basic form. of a concept with its characteristic features.()
A.
正确
B.
错误
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