双口网络有四种转移函数或传递函数：电压增益函数Ku（jω）是（）之比，电流增益函数K

单词拼写 根据所给汉语或英语首字母写出短文中所缺英语单词的正确形式。（共10个小题，每小题0.5分）

Last week, my friends and I talked about the rules in our school. Here are some of our ideas.

At our school, we have to wear uniforms every 小题1:d______. The problem is that all my classmates think the uniforms are 小题2:丑的______.We think young people should 小题3:l______ smart and so we would like to wear our own clothes. Our teachers believe that if we did that, we would concentrate more on our clothes than our studies. We don’t小题4:同意________.We would feel more comfortable and that is 小题5:g______ for studying. If we can’t do that, we should be小题6:允许__________to design our own uniforms. That would be a good way to keep both teachers and 小题7:学生___________ happy.

Besides, vacations should be longer. At present they’re too小题8:s______. Longer vacations would give us time to do things like volunteering. Last summer I had a(n) 小题9:机会_________ to volunteer at the local hospital,小题10:b________ I couldn’t because I had to go back to school.

劳动争议仲裁实行一个裁级（）裁决制度。

A.两次

B.多次

C.一次

D.无限

小瓶中装满水时，称其总质量为88g，小明又在这只装满水的小瓶中放入10g小石块，水溢出后，小明把瓶的外部擦干，称其总质量为94g，试求：

（1）小石块排开水的体积；

（2）小石块的密度．

下列对总承包单位和分包单位的安全生产责任制的叙述，哪些是正确的？（）

A．工程项目实行施工总承包的，由总承包单位对施工现场的安全生产负总责 

B．分包单位不服从总承包单位管理导致生产安全事故的，由分包单位承担主要责任 

C．总承包单位应当和各分包单位签订分包合同，分包合同中应当明确各自的安全生产方面的权利、责任和义务 

D．施工现场分包单位发生生产安全事故，由分包单位负责统计上报 

E．总承包单位和分包单位各自承担相应的安全生产责任，并对分包工程的安全生产承担连带责任

有关急性应激障碍的描述，正确的是（）

A.应激源对于多数人都是难以承受的

B.人格因素在发病中起重要作用

C.可有意识障碍与行为异常

D.可有精神运动性兴奋或抑制

E.女性患病率高于男性