95、（）是连接井筒和井下主要运输巷道的一组巷道和峒室的总称，是连接井下运输和提升两个环节的枢纽，是矿井生产的咽喉。 A、采区上部车场 B、井底车场 C、采区下部车场 - 查题网

>> 成人高等教育 / 煤矿开采学

成人高等教育 / 煤矿开采学

正确率：100%

95、（）是连接井筒和井下主要运输巷道的一组巷道和峒室的总称，是连接井下运输和提升两个环节的枢纽，是矿井生产的咽喉。

A、
采区上部车场
B、
井底车场
C、
采区下部车场

积分

煤矿开采学

参考答案：

点击查看答案

佳题速递：

4、mpeg﹑mpg 或 dat 格式是运动图像专家组（MPEG）格式，采用这种格式的家用设备不包括______。 A.DVD B.收音机 C.VCD D.SVCD计算机统考

In the area, AIDS is _ _ _ _ _ _ _ _ _ _ disease that the very mention of it strikes terror into the population. 大学英语

若行列式中有相同的行或列，则行列式值为零. 线性代数

21、No one is glad to hear that his body has to be cut open by a surgeon and part of it taken out. Today, however, we needn't worry about feeling pain during the operation. The sick person falls into a kind of sleep, and when he awakes, the operation is finished. But these happy conditions are fairly new. It is not many years since a man who had to have operation felt all its pain. Long ago, operation had usually to be done while the sick man could feel everything. Soon after 1770, Josept Priestley discovered a gas which is now called "laughing gas". Laughing gas became known in America. Young men and women went to parties to try it. Most of them spent their time laughing, but one man at a party, Horace Wells, noticed that people didn't seem to feel pain when they were using this gas. He decided to make an experiment on himself. He asked a friend to help him. Wells took some of the gas, and his friend pulled out one of Well's teeth. Wells felt no pain at all. As he didn't know enough about laughing gas, he gave a man less gas than he should have. The man cried out with pain when his tooth was being pulled out. Wells tried again, but this time he gave too much of the gas, and the man died. Wells never forgot this terrible event.统考英语阅读理解

在PowerPoil2010中,下列关于表格的说法错误的是( )。计算机应用基础

1个基金投资于股票、债券的比例，不得低于该基金资产总值的（）。A、80％B、50％C、15％D、30％财务管理