— My car has broken down. Would you plea

资本金利润率是年税后利润总额或年平均税后利润总额占资本金的比例。

下列哪部分渗漏由单环路探测系统监控（）

A.机翼管道

B.组件

C.机身中部APU管道

D.吊架

用括号内所给单词的适当形式填空

1. I met an old friend of __________(I) on my way home yesterday.

2. These skirts all look nice. It's hard for me __________(choose).

3. I want to improve my reading skills. Could you give me some __________(advice)?

4. I'm sure she can improve __________(her) in spoken English in two years' time.

5. The company expects __________(finish) work in August.

有空气、氮气、氧气、二氧化碳四瓶气体，按下表做实验，请根据现象判断A、B、C、D四种气体分别是以上哪种气体，把答案写在表格的最后一栏“你的判断”里．

慢性肾炎治疗的主要目的

A．消除蛋白尿

B．消除血尿

C．控制感染

D．应用血小板解聚药

E．防止或延缓肾功衰竭