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【简答题】
She is one of the most ____(having great importance) figures in local politics.
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【单选题】用N A 表示阿伏伽德罗常数的值.下列叙述正确的是(  )
A.
25℃时,pH=13的Ba(OH) 2 溶液中含有的OH - 数目为0.2N A
B.
标准状况下,2.24LCl 2 与过量的稀NaOH 溶液反应,转移电子总数为0.2N A
C.
室温下,46.0gN 2 O 4 和NO 2 的混合气体中含有的原子数目为3N A
D.
78gNa 2 O 2 固体中含有的阴离子数为2N A
【单选题】调节主机滑油压力的方式有()。
A.
调节进口阀开度
B.
调节出口阀的开度
C.
调节旁通阀的开度
D.
调节油泵的转速
【单选题】机车调度室主任调度员可由组织能力和责任心强、业务精的()兼任,履行主任调度员岗位职责。
A.
出勤调度员
B.
计划调度员
C.
派班调度员
D.
退勤调度员
【单选题】I had worked here ______ you came here. But I shall leave for England ______.
A.
before long, before long
B.
before long; long before
C.
long before, before long
D.
long before; long before
【单选题】6位7段数码管动态显示模块如图1,要求人眼看到所有数码管同时显示各自对应的数字,控制数码管位选信号的动态扫描时钟信号频率约为多少【图片】
A.
1kHz
B.
1Hz
C.
10Hz
D.
100Hz
E.
100kHz
F.
1MHz
【简答题】A desire for environmental change led to the creation of various political parties around the world whose emphasis was largely on environmental protection.
【单选题】The ownership of cars enables the establishment of rural factories and suburban shopping centers with huge parking lots.
A.
Y
B.
N
C.
NG
【单选题】How does the professor develop the topic of political parties?
A.
By comparing the goals of different parties
B.
By promoting the views of a specific party
C.
By describing parties in a two-party system
D.
By explaining how to organize a party
【简答题】The only real (1) China's pollution problems, scientists claim, is to cut emissions ( 排放 ) from power plants, factories and cars. ( solution) 2.The Chinese government has officially (2) the global gam...
【单选题】为保证水库调度业务和管理工作的正常开展,电网调度机构应根据水库调度主要职责设置水库调度工作岗位,并制订相应的()。
A.
技术规范
B.
岗位职责
C.
工作要求
D.
安全职责
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