车身板件的变形恢复后，但内部还存在应力，原因是什么？（）A、由于使用高强钢后变形应力

One day while a girl was walking in the woods she found two starving songbirds. She took them home and put them in a small (31) . She cared for them and felt great love for them.

Once the (32) and per of the two birds flew from the cage. Therefore, (33) he flew close, she grasped him (34) . She felt glad, but suddenly she felt the bird go limp. She opened her hand and (35) in horror at the dead bird.

She noticed the other bird moving back and forth on the edge of the cage. She could feel his great need for (36) . She lifted him from the cage and (37) him softly into the air. The bird circled once, twice, three times.

The girl watched delightedly at the bird’ s enjoyment. Her heart was no longer (38) with her loss. Suddenly the bird flew closer and (39) softly on her shoulder. It sang the sweetest melody that she had ever heard.

The fastest way to (40) love is to hold on it too tightly, while the best way to keep love is to give it WINGS!

（32）（）

A.packed

B.concerned

C.marked

D.lined

抑制凝血酶活性最主要的物质是（）.

A.抗凝血酶Ⅰ（ATⅠ）

B.抗凝血酶Ⅱ（ATⅡ）

C.抗凝血酶Ⅲ（ATⅢ）

D.抗凝血酶Ⅳ（ATⅣ）

E.凝血因子Ⅸa

对于一定质量的理想气体的状态方程，从微观的角度解释，下列说法中正确的是[ ]

A．在温度不变时，气体体积增大，平均每个气体分子与器壁碰撞时冲量减小，气体压强减小    

B．在压强不变时，气体温度升高，平均每个气体分子对器壁产生的冲量增大，减小单位面积上碰撞次数，使体积增大    

C．在体积不变时，气体温度升高，平均每个气体分子对器壁产生的冲量增大，碰撞次数增多，压强增大    

D．在体积不变时，气体温度升高，平均每个气体分子对器壁产生的冲量增大，使压强增大

从图中反映的历史事件中我们应该吸取的历史教训有：

①科学判断国内的主要矛盾和主要任务，以经济建设为中心；

②经济建设必须遵循经济发展的客观规律；

③生产关系的变革必须与生产力发展水平相适应；

④国民经济各部门协调发展；

⑤社会主义建设必须从国情出发，坚持实事求是的思想路线。

A．③⑤

B．①②③

C．①②③④⑤

D．②④⑤

______秘书在没有上司指示、授意和监督的情况下，履行其常规性工作。

A．常规事务性
B．指派性工作
C．自主独创性工作
D．非公务