我们要坚持内外均衡发展，着力构建扩大内需，特别是消费需求的长效机制。充分挖掘市场

根据短文内容及首字母提示，填写所缺单词，使短文意思完整。

Living in a city has (1) b      advantages and disadvantages. It is often (2) e     to find work in a city than in the countryside. There are always many choices of public transport. Besides, there are a lot of (3) I      things to do and places to see. You can eat in good (4) r     , visit museums, go to cinemas and go to parks when you (5) w       to relax. (6) H    , living in a city is often very (7) e      . You must find a well-paid job, otherwise you will not be able to (8) b       the things you want. What’s more, the city is always crowded, (9) n       and dirty. It is very difficult to find a good place where people can enjoy peace and (10) f       air as in the countryside.

如图所示不计绳重与摩擦，且动滑轮重G_动小于物重G，用它们分别将物重相同的甲、乙两物体匀速提升相同的高度，所用的拉力分别为F_甲、F_乙，它们的机械效率分别为η_甲、η_乙。则下列关系正确的是：

A．F_甲<F_乙；

B．F_甲>F_乙；

C．η_甲<η_乙；

D．η_甲=η_乙

耳部及颞骨的主要检查方法是（）

A.普通X线

B.高分辨CT

C.磁共振

D.以上都是

E.以上均不是

什么叫矿山压力显现？

机动车驾驶证有效期一律为6年。