题目内容：
举例说明什么是直接测量及这种测量有何特点。
参考答案：
选择题：举例说明什么是直接测量及这种测量有何特点。
- 题目分类：电气测量技术
- 题目类型：选择题
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熔断器是 。
熔断器是 。A.保护电器B.开关电器C.继电器的一种D.主令电器
I think____ important to learn English well.( )(本题
I think____ important to learn English well.( )(本题3.0分) A、 this B、 that C、 it
He tried to stand on his hands for five minutes, _
He tried to stand on his hands for five minutes, _______ is rather a difficult t
极限 lim x→1 x2-2x+1/x2-1=( ) [ 2 分 ] A. 0 B. 1 C. 2
极限 lim x→1 x2-2x+1/x2-1=( ) [ 2 分 ] A. 0 B. 1 C. 2 D. 3
During the summer holidays , he was made ______ tw
During the summer holidays , he was made ______ two hours a day. ( )(本题3.5分) A、