问题
单项选择题
计数调整型抽样检验标准中重要的经济指标是______。
A.平均样本量
B.平均检出质量上限
C.批容许不合格率
D.平均检验总数
答案
参考答案:A
解析:平均样本量是计数调整型抽样检验标准中重要的经济指标。
计数调整型抽样检验标准中重要的经济指标是______。
A.平均样本量
B.平均检出质量上限
C.批容许不合格率
D.平均检验总数
参考答案:A
解析:平均样本量是计数调整型抽样检验标准中重要的经济指标。
根据短文内容,从短文后的选项中选出适当的选项补全短文将选项的字母编号依次填入横线上(共5小题,每小题1分;计5分)。 Stress is a kind of worry and it can trouble you for hours, or even days. 1 It makes you difficult to eat and sleep or you might eat and sleep much more than usual. Stressing out will cause serious problems like heart illness. 2 The good kind keeps your body and mind alert(机敏)and can make you perform better, like when you are giving a speech to your class or running to the finish line. What causes stress? 3 Because they are stressed out! There are lots of things in you life can cause stress — having too much homework, taking a test in a subject that you are not good at, or hearing your parents argue! There are some ways to deal with stress. 4 Take part in sports and out-of-class activities. Try to get at least eight hours of sleep every night. Eat a healthy, balanced diet that includes all kinds of food. 5 It’ll make you feel better, and they may be able to give you advice and help you with your problem.
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