以下程序执行后，sum的值是______。main() int i， sum； f

用所给单词的适当形式填空。．

小题1: —________ your father __________(fly) abroad yet?

—Yes, he has been in Singapore for a week.

小题2:Niushou Hill is an area of natural ______________ (beautiful) .

小题3:The men were clearing all the _____________(pollute) from the lake.

小题4:Xuzhou is one of the __________(north) cities in Jiangsu.

小题5:My brother__________(buy) some storybooks foe me just now. I like them very much.

小题6:The boy couldn’t stop ___________(laugh) after he heard the jokes.

小题7:Let’s use the computer __________(help) us do the homework..

小题8:This is the most interesting film I _______ ever________(see) in my life.

小题9:He spends as much time as he can ____________(learn) English every day.

如图所示的一些与物理相关的生活现象中，图______主要表示力能使物体的运动状态发生改变；图______主要表示力能使物体发生形变．

设一曲线过点(e,1)，且在此曲线上任一点的M(x,y)的法线斜率为

，则此曲线方程为

满面通红的临床意义是（）。

A.阴虚火旺

B.虚阳上越

C.邪热亢盛

D.真寒假热

E.阳气暴脱

去甲肾上腺素引起

A．心脏兴奋、皮肤黏膜血管收缩
B．收缩压升高、舒张压降低，脉压差加大
C．肾血管收缩、骨骼肌血管扩张
D．心脏兴奋、支气管平滑肌松弛
E．明显的中枢兴奋作用