青年男性，右肘关节近端6cm处被机器轧伤，肱骨下段粉碎性骨折，软组织挫伤严重，肱动脉

用所给词的适当形式填空。

1. Chinese people are very ______ (friend).

2. The girls enjoy______ (wear) beautiful clothes.

3. I hope the______ (begin) of our class is happy.

4. I like my job, because it's ______ (relax).

5. There are lots of ______ (leaf) on the ground.

6. Lions eat lots of ______ (meat) every day.

7. Let her ______ (have) a look at your new watch.

8. All the parents like their______ (child).

9. We want ______ (help) the children in Wenchuan.

10. Don't play soccer in the street.  It's ______ (danger).

急性血源性骨髓炎应用抗生素治疗后，出现X线片改变，全身及局部症状消失，仍需要应用抗生素的时间至少是（）

A.1周

B.2周

C.3周

D.4周

E.6周

差异性青紫出现于哪种先心病（）。

A.房间隔缺损

B.室间隔缺损

C.动脉导管未闭

D.肺动脉狭窄

E.法洛四联症

《楚辞章句》

现场常用加（）方法来降低钻井液的粘度和切力。

A.乳化剂

B.降粘剂

C.絮凝剂

D.润滑剂