搜题请搜索小程序“爱下问搜题”
问题 单项选择题

评价群体生长发育状况的Z评分法公式为______。

A．Z评分=(儿童测量数据-参考标准的中位数)/参考标准的标准差

B．Z评分=(儿童测量数据-参考标准的平均值)/参考标准的中位数

C．Z评分=(儿童测量数据-参考标准的中位数)/参考标准的中位数

D．Z评分=(儿童测量数据-参考标准的平均值)/参考标准的标准差

答案

参考答案：A

填空题

Zhang Qin is a nineteen-year-old young man. Two years ago, when he __46__ middle school, he found work in a shop. Usually he worked __47__ nine o’clock in the evening. When he got home, he always felt very tired. After a quick supper he went to bed and fell __48__. So he never made any noise and his grandfather was very pleased with him.

One day he went back from work a little __49__. On his way home he met Li Jun, one of his __50__. They were both very happy. Zhang Qin asked Li Jun to his house, and Li Jun agreed. Li Jun __51__ some fruit and drink. They talked about their school, their teachers, their classmates and their __53__. They talked for a long time.

“ Have a look at your watch, please.” Said Li Jun, “ What’s the time now?”

“ Sorry, there is something wrong with my watch.” Said Zhang Qin. “ Where is __53__?”

“ I __54_ it at home.”

Zhang Qin thought for a moment and found a way. He began to jump on the floor.

The sound woke his grandfather up. The old man shouted __55__. “ It’s twelve o’clock，Zhang Qin. Why are you still jumping upstairs？“

（

A．asleep

B．future(s)

C．downstairs

D．finished E. until F. classmates G. left H. earlier I. brought J. yours ）
查看答案
多项选择题

腹壁切口疝的病因有（）。

A.曾有切口裂开

B.曾有切口感染

C.多次腹部手术组织缺损

D.腹壁损伤

E.术后腹内压较高
查看答案