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【单选题】
适用于有易燃、易爆气体工作环境的是( ) 电动机。
A.
防爆式
B.
防护式
C.
开启式
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【单选题】电动机过载时,热继电器中的双金属片弯曲,是因为它是由两种()不同的金属通过机械辗压而制成。
A.
熔点
B.
线膨胀系数
C.
密度
【单选题】Political dominance belonged to the north. Germany, France, and England had large populations and large armies that made them, in the political and military senses, the masters of western Europe. Orga...
A.
In political history, northern kingdoms tried to extend their control during the twelfth century, but the south tapped into the rich treasures it had around the Mediterranean.
B.
Political history demonstrates that during the twelfth century, while southern states enjoyed the Mediterranean bonanza, northern countries increased the power of their kings.
C.
The political history of twelfth-century Europe shows particularly that northern countries continually tried to expand their rule into the south to profit from the riches there.
D.
Political history shows that northern kingdoms were so influenced by the example of Mediterranean wealth that they advanced into other areas.
【判断题】进行膨胀运算后,图像比原图大。
A.
正确
B.
错误
【单选题】● OSPF是一种内部网关协议,这种协议的特点是 (26) 。 (26)
A.
采用距离矢量算法自动进行路由更新
B.
采用链路状态算法来计算到达目标的最短通路
C.
以跳步数作为路由度量标准
D.
当出现路由环路时算法收敛很慢
【单选题】It is the successful __________ education that creates a large number of excellent workers for Germany.
A.
vocation
B.
vocational
C.
prospective
【单选题】It is the successful ___________ education that creates a large number of excellent workers for Germany.
A.
vocational
B.
vocation
C.
Personality
D.
tragedy
【单选题】OSPF是一种内部网关协议,这种协议的特点是()
A.
以跳步数作为路由度量标准
B.
采用距离矢量算法自动进行路由更新
C.
采用链路状态算法来计算到达目标的最短通路
D.
当出现路由环路时算法收敛很慢
【多选题】以下原则属于戴明14条原则的是( )。
A.
质量意味着无缺陷
B.
建立改进产品和服务的长期目标
C.
停止依靠检验来保证质量
D.
质量能满足顾客需求
【多选题】以下属于正确地改证原则的是
A.
对我方有利,但不影响对方利益,一般不改
B.
对我方不利,若不改会严重影响安全收汇,则坚决要改。
C.
对我方不利,但是在不增加或基本不增加成本的情况下可以完成,可以不改
D.
对我方有利,但会严重影响对方利益,一定要改。
【多选题】以下属于正确的改证原则的是( )。
A.
对我方有利,但不影响对方利益,一般不改。
B.
对我方不利,若不改会严重影响安全收汇,则坚决要改。
C.
对我方不利,但是在不增加或基本不增加成本的情况下可以完成,可以不改。
D.
对我方有利,但会严重影响对方利益,一定要改。
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