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【单选题】
造成虚焊是由于焊锡与被焊金属A.
没成型成合金
B.
形成合金
C.
焊料过多
D.
时间过长
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反馈参考答案：
举一反三
【简答题】move or go somewhere in a slow casual way 17Jimmy spent the year d ing around Europe.
【简答题】The study suggests that most first－ generation students__ The study suggests that most first- generation students__ [A] study at private universities [B] are from single-parent families [C] are in ne...
【判断题】The first generation computers were huge,slow,expensive,and often undependable.()
A.
正确
B.
错误
【简答题】各有关管理人员在接到人员健康异常、已不适应生产情况的主动报告后，须及时向（）及（）报告，以便立即采取有效措施，防止造成（）和（）的感染。
【单选题】We drove to the airport the next morning to pick up Susan.
A.
to take hold of and lift or move
B.
to go somewhere in your car and collect sb. who is waiting for you
C.
to get information or a skill by chance rather than by making a deliberate effort
【简答题】Recruiting more first- generation students has____ [A] reduced their dropout rates [B] narrowed the achievement gap [C] missed its original purpose [D] depressed college students 本题为单选题，请选出正确答案，谢谢！
【简答题】z__________ v. to move or go somewhere very fast
【简答题】v. move or go somewhere in a slow casual way
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