国家规定服务业的营业税率是（）。A.3% B.5% C.17% D.20%

We have a big playground in our school .We all like to 46  games on the playground  47  school .It’s Friday. We have only two classes 48  the afternoon .  49  school is over, a lot of students go to the playground quickly.  The boys of Grade Two often  50  soccer. The girls like  51  them playing soccer. Soccer is their favorite sport . Their teacher Mr. Li also  52  football. Li Ming , Li Lei and Wei Fang are students of Grade One. They sometimes play soccer  53  the students of Class Two. It’s half past five  54  . It’s time  55  dinner . My father is waiting for me at the school gate .

小题1:A. do                 B. make               C. play

小题2:A. after               B. before               C. on

小题3:A. on                 B. in                  C. at

小题4:A. Where              B. What               C. When

小题5:A. have               B. do                  C. play

小题6:A. seeing              B. reading              C. watching

小题7:A. playing             B. plays                C. to play

小题8:A. to                  B. of                  C. with

小题9:A. here               B. now                C. then

小题10:A. has                 B. to have              C. having

女性，40岁，反复“尿路感染”多年，拟诊为慢性肾盂肾炎。下列哪项对确定诊断无帮助（）

A.静脉肾盂造影时见到肾盂变形后缩窄

B.肾外形凸凹不平，双肾大小不等

C.有肾小管功能持续损害证据

D.多次中段尿培养未得到同一细菌生长

E.尿中有微量蛋白

质量为m的跳水运动员，从高出水面h的跳台上以某速度斜向上跳起，跳起高度离跳台为H，最后以速度v进入水中，不计空气阻力，则运动员起跳时所做的功为（　　）

A．mgH

B．mgH+mgH

C．

D．

近几年外商投资最多的国家是人口较多而且经济总量最大的（）。

A.英国

B.法国

C.美国

D.日本

周期性瘫痪临床上不应有的表现为（）

A.骨骼肌弛缓性瘫痪

B.大小便失禁

C.脑脊液正常

D.血清钾降低

E.腱反射减弱