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【单选题】
低压断路器也称为( )
A.
闸刀
B.
总开关
C.
自动空气开关
D.
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【单选题】下列哪项是对X线吸收能力最强的组织结构
A.
骨骼
B.
皮肤
C.
肺组织
D.
肌肉
【简答题】Apparently he had some very hurtful _____ (person) problems that were so overwhelming that he was planning to take his own life that day.
【判断题】食用桑果前最好用淡盐水或淘米水浸泡后,再用自来水冲洗更为安全。
A.
正确
B.
错误
【判断题】食用桑果前最好用淡盐水或淘米水浸泡后,再用自来水冲洗更为安全。
A.
正确
B.
错误
【单选题】HXD3B型电力机车主变压器设有()组牵引绕组。
A.
2
B.
4
C.
6
D.
8
【判断题】HXD3B型电力机车主变压器设有8组牵引绕组,分别经过三组变流柜,实现对机车牵引系统、辅助系统及控制系统的供电。
A.
正确
B.
错误
【判断题】当卖方延迟履行义务时,买方可以并行两种权利:一是规定宽限期要求卖方履约;二是请求损害赔偿。
A.
正确
B.
错误
【单选题】西湖龙井茶是( )典型代表。
A.
遗址遗迹
B.
建筑与设施
C.
旅游商品
D.
人文活动
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