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搜题
【判断题】
利用互感器使测量仪表与高电压、大电流隔离,从而保证仪表和人身的安全,又可大大减少测量中能量的损耗,扩大仪表量程,便于仪表的标准化。
A.
正确
B.
错误
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举一反三
【单选题】He has behaved in the most extraordinary way recently,  wonder what can ____ his actions. [     ]
A.
answer for
B.
wish for
C.
ask for
D.
account for
【单选题】. He has behaved in the most extraordinary way recently, I wonder what can _______his actions.
A.
answer for
B.
wish for
C.
ask for
D.
account for
【多选题】蛋白质的球形结构特征属于(    )。
A.
蛋白质的一级结构    
B.
蛋白质的二级结构
C.
蛋白质的三级结构    
D.
蛋白质的四级结构
【判断题】棘皮动物均呈辐射对称,是真正后生动物的开始,水管系统为该门动物所特有( )
A.
正确
B.
错误
【单选题】What the government should do urgently is to take actions to the economy.
A.
brook
B.
blush
C.
boost
D.
brood
【简答题】What actions are mentioned in the text to improve the performance of the customs administrations? What results have these actions brought about?
【单选题】What will soda makers do in response to the ban?
A.
They consider taking legal actions against the ban.
B.
They have no choice but to accept the ban.
C.
They plan to make adjustments in their business.
D.
They decide to take advantage of the ban.
【单选题】消除不了齿轮泵困油现象的措施是()。
A.
降低泵的转速
B.
降低油温
C.
开卸荷槽
D.
A和B
【单选题】消除不了齿轮泵困油现象的措施是____。
A.
降低泵的转速
B.
降低油温
C.
开卸荷槽
D.
A+B
【单选题】消除不了齿轮泵困油现象的措施是________。
A.
降低泵的转速
B.
降低油温
C.
开卸荷槽
D.
降低泵的转速 和 降低油温
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