太湖流域全面推行河长制，为强化水资源监测能力建设，其中列入全国重要饮用水水源地名录的

Hello, friend!

My name is Rose. I’m an English girl. I’m twelve. I’m from London. Now I’m in Sydney. Do you know Sydney? It’s a big city in Australia（澳大利亚）. I’m in No.1 Middle school. I’m in Class Two, Grade One.

There are forty students in our class--21 girls and 19 boys. My teachers are nice to me. I like drawing and running. My family are in Sydney, too. My father is a doctor. My mother is a worker in a shop. They’re busy（忙）  

I like China. Please write to me soon.                     

Yours ,                                                                       Rose

小题1:Is Rose English or Australian?

A．Yes, she is.

B．No, she isn’t.

C．She’s English.

D．She’s Australian.小题2:How many students are there in Class Two?   

A．40.

B．21.

C．19.

D．50.小题3:Where is Sydney?

A．It’s in China.

B．It’s in England.

C．It’s in Australia.

D．It’s in America.

CD40组成性表达于成熟B细胞，属肿瘤坏死因子受体家族，CD40的配体表达于活化T细胞。()

登高焊割作业指离地面（）。

A.2m

B.2m以上

C.10m以上

右旋糖酐注射液采用( )。

A．干热灭菌
B．流通蒸汽灭菌
C．滤过灭菌
D．热压灭菌
E．紫外线灭菌

捆绑绳的吊挂角度越小，起重能力越大。