男性，20岁，感冒后7天出现颜面及双下肢水肿，尿少。查：血压160／100mmHg，

单词拼写

1. I opened the door and a ____   her into the house.

2. London will h ____ the 2012 Olympic Games.

3. Some actors were c ___with taking drugs.

4. If you want to sell your product, you must ____     ( 做广)

5. I picked up a few good ____    ( 便宜货)in the sale.

做一个体积为8m³，底面为正方形的长方体纸盒，至少需要材料______m²．

图16-42中的焊脚尺寸h_f是根据（）选定的。

A.

B.

C.

D.

挡土墙的主要作用有：（）。

A.维护土体边坡稳定

B.防止坡体的滑移

C.防止土方边坡的坍塌

D.防止土体的滑移

E.防止土方的坍塌