载流导体功率的大小与()无关。 A.电流大小 B.时间长短 C.电压大小

题型:单项选择题

问题:

载流导体功率的大小与()无关。

A.电流大小

B.时间长短

C.电压大小

D.不能确定

考点:电气值班员考试电气值班员技师考试电气值班员技师考试题库
题型:单项选择题

我国高等教育毕业证书电子注册制度于哪一年起开始建立并实施?().

A.1981年

B.1991年

C.2001年

D.2011年

题型:单项选择题

If you are ________ about anything, please call my office.[ ]

A. confuse  

B. confusing  

C. confused  

D. to confuse

题型:单项选择题

行车调度命令是铁路行车中遇非正常情况下采取的作业方式的()。

A、指示

B、指令

C、文件

D、电报

题型:单项选择题

电子温度控制器的温度检测电路普遍利用传感器的温度特性,将温度()。

A.升降变化转换为电阻值升降变化

B.升降变化转换为电感容量变化

C.非线性变化转换为线性变化

D.线性变化转换为非线性变化

题型:单项选择题


Directions: There are 10 blanks in the following passage. For each numbered blank, there are 4 choices marked A, B, C and D.

Historians tend to tell the same joke when they are describing history education in America. It’s the one (51) the teacher standing in the schoolroom door (52) goodbye to students for the summer and calling after them. "By the way, we won World War II."
The problem with the joke, of course, is that it’s not funny. The recent surveys on (53) illiteracy are beginning to numb. nearly one third of American 17-year-olds cannot even (54) which countries the United States fought against in that war. One third have no idea when the Declaration of Independence was (55) . One third thought Columbus reached the New World after 1750. Two thirds cannot correctly (56) the Civil War between 1850 and 1900. Even when they get the answers right, some are just guessing.
Unlike math or science, ignorance of history cannot be (57) connected to toss of international competitiveness. But it does affect our future (58) a democratic nation and as individuals.
The good news is that there is growing agreement on what is wrong with the (59) of history and what needs to be done to fix it. The steps are tentative (尝试性的) (60) yet to be felt in most classrooms.

A.consulting

B.coaching

C.teaching

D.instructing

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