我们可以通过对()、()、()三方面的评价来判断信息是否有价值。
参考答案:信息源、信息的准确度、信息费用
用恰当的词语填空.完成对话。每空一词。(每小题1分.共5分)
W: Excuse me, is there a bookstore around here?
M: Yes. There is 小题1: on Zhongshan Road. It's between the parking lot and the supermarket.
W: How 小题2: is it from here?
M: About thirty minutes' walk. You can 小题3: the No. 14 bus there.
W: Thank you. By the way,小题4: the bus stop?
M: It's at the end of this street. You can't 小题5: it.
W: Thanks for your help.
M: You're welcome.
初产妇,26岁,孕38周,横位,胎心正常,宫口已开全,子宫下段压痛明显,无血尿,应采取下的恰当处理是
A.剖宫产术B.内倒转+产钳术C.内倒转+臀牵引术D.碎胎术E.断头术