合法性权利

30年代”京派“作家有（）

A．周作人

B．废名

C．萧乾

D．沈从文

导柱导向机构设计原则？

尘埃污染了空气，也给人类带来了麻烦。许多细菌、病毒和虫卵，就是靠着它到处旅行，到处传播疾病。工业粉尘还能使人患上各种难治的疾病。在医院的手术室里，需要无菌操作，尘埃的存在，往往会带来意外。面粉厂里过多的粉尘，又有引起爆炸的可能……
文中加点的“麻烦”是指( )。

A．到处传播疾病
B．往往带来意外
C．增添负担和痛苦
D．给人类带来危害

You want to know what the safest place for children 77．______
is in the car The experts say the back seat is the safest for 78．______
them. The back seat is farthest away off the force of a head- 79．______
on collision(迎头撞击), which can lead serious injuries. 80．______
If your child is below 8 and weighs no more than 85 81．______
pounds, it is necessarily to fit your car with a safety seat. 82．______
Moreover, the safety seat must be held in place of on the83．______
car’s back seat. If your child do need your attention while 84．______
you driving, don’t look back with only one hand on the 85．______
wheel. You’d better stop the car. 86．______

温度不变的情况下，气体压力增大，体积就减小。