生产经营单位建立和保持程序，用来标识、保存和( )有关职业安全健康记录。A．批准

     Mike is a teacher in a middle school in Toronto. He teaches Math(数学). He comes from America.

His father and mother aren’t in Australia. They are in America.    

     Toronto is a very nice and Mike likes it very much. His school is also(也) very beautiful. The other

teachers and the students are all very friendly. On Sundays Mike often goes to the People's Park(人民

公园) with his Chinese friends. He can speak a little Chinese. He often talks with his Chinese his friends.

He is very happy in Toronto.

根据短文内容，判断下列句子正误。

( )1. Mike is in Shanghai with his parents.

( )2. Mike is form England.

( )3. The people in his school are very friendly.

( )4. Mike likes Toronto but he doesn’t like his school.

( )5. Mike can speak a little Chinese.

对酒精灯的使用方法叙述错误的是（　　）

A．酒精灯要用火柴点燃

B．酒精灯的火焰可以用嘴吹灭

C．酒精灯不用的时候必须盖上灯帽

D．禁止向燃着的酒精灯里添加酒精

通常情况下，EOS所采取的传输网络是（）。

A.Internet

B.Intranet

C.专用网

D.公共网

当代我国教育的导向思想是（）

A.个性教育

B.素质教育

C.职业技术教育

D.特长教育

除氧器滑压运行汽轮机负荷变化时对给水泵运行有何影响？