问题
单项选择题
下面（）是错误的：
A.标准误大，说明用样本均数代表总体均数可靠性大
B.标准误小，说明用样本均数代表总体均数可靠性大
C.标准差大，标准误也大
D.样本含量大，标准误则小
E.标准误常用来估计总计均数可信区间
答案
参考答案：A
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下面（）是错误的：
A.标准误大，说明用样本均数代表总体均数可靠性大
B.标准误小，说明用样本均数代表总体均数可靠性大
C.标准差大，标准误也大
D.样本含量大，标准误则小
E.标准误常用来估计总计均数可信区间
参考答案：A
One day， a Chinese student goes to study English in England. His family name is Sun. It is the _ __ as the word "sun." England is a country with _ . It is often cloudy or misty(多雾的)，and it _ again， so the days there _ _ get much sunshine(阳光) all the year. When the Chinese student gets to London，a tall _ _ policeman with a long face _ __ his passport(护照) to check(检查) it. The policeman finds the Chinese name "sun" in the passport. He _ _ it is pronounced(发音) just like the _ word "sun". So he says to the Chinese student， "I see your name is Sun， you’re wanted here. You bring sunshine __ _ England， so we don’t want you to __ __ ." They smile.
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