图中所示为某晶闸管直流调节系统结构图。调节对象由一个放大系数为Kx，时间常数为Tt的

One day after school, on the way to home, Xiao Ming found a   1.     

water pipe in the street. He turned off a tap and splashed water  2.     

here and there. At this moment , Xiao Gang happened to be    3.      

passing by. Xiao Ming splashed him with water and make him   4.      

all wet. Xiao Ming ran away with turning off the tap.    5.     

When Xiao Gang saw this, she went over and turned off the water.  6.      

He was angry because he thought water shouldn’t wasted.     7.     

Then he went home and wrote a notice where read “ save water”  8.     

He put them up on the wall near the tap. After some time, Xiao Ming 9.     

went back and saw the notice. He felt sorry at what he had done. 10.    

半山诗

何谓“紧实率”？为什么要测定紧实率，如何测定？

加速数

下列关于网关的说法，哪些正确？（）

A.网关永远允许所有信息通过

B.网关只允许某些特定的数据从一条总线系统传输至另一条总线系统

C.网关会调整数据信息以便传递到特定的总线系统

D.网关仅仅控制经由MOST至车内部件的网络信息