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【判断题】
对某些金属的多层焊时,锤击每层焊道可以减低焊缝金属的残余应力。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】(非谓语动词,时态)They rushed to the station only to find the train ______ already.
A.
was left
B.
had left
C.
is leaving
D.
has left
【单选题】Which of the following statements is true about a traditional social networking website?
A.
A traditional social networking website groups specific individuals or organizations together.
B.
A traditional social networking website posts the personal information of its members.
C.
A traditional social networking website provides its members with privileges such as downloading music.
D.
A traditional social networking website has no main focus, so anyone can become a member.
【单选题】不能治愈的性传播疾病是:
A.
由衣原体,螺旋体,原生动物感染引起的性传播疾病
B.
由寄生虫,昆虫感染引起的性传播疾病
C.
由细菌感染引起的性传播疾病
D.
由病毒感染引起的性传播疾病
【多选题】党在民主革命时期，逐步认识到土地革命的极端重要性，形成了土地革命路线，这就是（）。
A.
依靠贫雇农
B.
团结中农
C.
有步骤、有分别地消灭封建剥削制度
D.
发展农业生产
【单选题】党在民主革命时期,逐步认识到土地革命的极端重要性,形成了土地革命路线,这就是依靠贫雇农,团结中农,有步骤、有分别地消灭( ),发展农业生产。
A.
地主
B.
富农
C.
封建剥削制度
D.
手工业者
【单选题】Based on the video clip, what can be a sign of a social networking addiction?
A.
You prefer playing online games to hanging out with your friends.
B.
You prefer quantifying your social life through social networking.
C.
You can't function in your daily life well without social networking.
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