下列各项中，没有语病的一项是（） A．全球三大铁矿石生产商之一淡水河谷原本与中信

用括号内所给动词的适当形式填空。

1. By the time I      __ (wake) up,  it already                     (stop) snowing.

2. He said he                    (see) the movie twice.

3. By the end of last term, we                       (learn) 400 English words.

4. When I         (get) to the cinema, the film                      (start).

5. He                      (finish) his homework by nine o'clock 1ast night.

6. We                      (wait) for her for twenty minutes by the time Sally          (arrive)

7. They said they                       (be) to Hong Kong.

8. They                       (come) to her home before she           (telephone) them.

9. The school bus                        (leave) when I           (get) outside.

10. After I got off the bus, I found I                         (lose) my wallet.

一朵花的主要部分是

A．花瓣

B．雌蕊

C．雄蕊

D．雌蕊和雄蕊

细晶岩脉属于__________。

A、深成岩

B、浅成岩

C、沉积岩

D、次火山岩

无水硅胶的颜色（）

A、无色

B、蓝色

C、红色

D、紫色

尿毒症患者可以有

A．血磷升高

B．血钙降低

C．脑动脉粥样硬化

D．消化道出血

E．血磷降低