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【判断题】
防火阀的动作温度是70度
A.
正确
B.
错误
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【多选题】焊接电流的选择应根据焊条、焊件、接头形式、焊缝空间位置等诸多因素来综合考虑,其中最为关键的因素有( )n
A.
焊条牌号
B.
焊条直径
C.
焊件的厚度
D.
焊缝空间位置
E.
焊缝焊接层数
【单选题】How did Zeus save his brothers and sisters?
A.
Zeus killed his father.
B.
Zeus castrated his father.
C.
Zeus made his father drunk.
D.
Zeus made his father start vomiting.
【判断题】焊缝在空间的位置除平焊外,还有立焊、横焊和仰焊。
A.
正确
B.
错误
【简答题】焊缝在空间的位置除 外,还有 、 、 。
【简答题】焊缝的空间位置有()、()、()、()。
【多选题】split()函数的操作对象,可以是?
A.
向量
B.
列表
C.
矩阵
D.
数据框
【多选题】网络推广的常见方法和策略有(    )
A.
自建网站
B.
搜索引擎排名
C.
微信推广
D.
微博推广
【单选题】What happened after Metis swallowed by Zeus?
A.
Athena was born out of Zeus’ head
B.
Zeus got a serious stomachache
C.
Zeus got a revenge from Metis
D.
Hera succeeded in marrying Zeus
【判断题】亚马逊平台的Review是对产品本身的评价,涉及服务、物流等情况。
A.
正确
B.
错误
【单选题】How did Zeus save his other siblings?
A.
Zeus killed his father.
B.
Zeus castrated his father.
C.
Zeus made his father drunk.
D.
Zeus made his father start vomiting.
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