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问题 单项选择题

相对介质损耗因数和电容量比值检测仪器要求主要技术指标中，介质损耗因数：−1～（），±（标准读数绝对值×0.5%+0.001）。

A.1

B.2

C.3

D.4

答案

参考答案：A

填空题

小明1989年6月25日出生，到今年6月25日，他满______周岁．
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单项选择题

A mother of an ill child tells the nurse that her child "isn’t eating well. " Which of the following strategies devised by the mother to help increase the child’s intake is not appropriate()

A. Asking the child to say why he is not eating.

B. Telling the child he must eat or else he will not get better.

C. Allowing the child to choose his meals from an acceptable list of foods.

D. Letting the child to substitute items on his tray for other nutritious foods.
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