记账人员记账时将某笔经济业务漏记,期末进行试算平衡时检查不出这一错误,故要用其他方法检查。 ()
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评价健康教育时,若目标人群失访比例超过______可造成偏倚
A. 0.05
B. 0.1
C. 0.15
D. 0.2
E. 0.25
【B15】
A. better
B. less
C. more
D. rather
听力原文: A small girl and his mother were having a walk in the country when it suddenly began to rain very hard. They did not have their umbrellas with them, and there was nowhere to hide from the rain, so they were soon very wet, and the small girl did not feel very happy.
For a long time while they were walking home through the rain, the girl was thinking. Then at last she turned to her mother and said to her, "why does it rain, Mother? It isn't very nice, is it?"
"No, it isn't very nice, but it's useful," answered her mother. "It rains to make the fruit and the vegetables grow for us, and to make the grass grow for the cows and sheep."
The girl thought about this for a few seconds, and then he said, "Then, why does it rain on the road too, Mother?"
Where were the small girl and her mother having a walk?
A. In the downtown.
B. At the beach.
C. In the country.
伤寒病人出现的最严重的并发症是()
A. 肠炎
B. 阑尾炎
C. 肠穿孔
D. 肠出血
E. 肠痉挛