题目内容

工件磁化通电方式可分为()和剩磁法。

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在电动起重机械中,驱动装置就是()。

在潮湿的工井内使用电气设备时,操作人员应穿()。

A. 工作鞋
B. 绝缘靴
C. 旅游鞋
D. 皮鞋

Refer to the router topology shown in the graphic. Assuming that all routers are running OSPF, which statements correctly describe how the routers exchange routing information?()

A. Denmark exchanges with Utah, Paris, and Berlin.
B. Utah exchanges only with Denmark.
C. Berlin exchanges with Denmark, Utah, and Paris.
D. Paris exchanges only with Denmark.
E. Denmark exchanges with only Paris and Utah.

硬质面包烘烤成熟时,如果炉温过低,面粉中酶的作用时间延长,面筋凝固随之推迟,造成面包烘烤时间延长、水分蒸发过多、表皮干硬、制品颜色较浅的不良后果。

A. 正确
B. 错误

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