外供水量不包括下列哪个（）A、自来水生产企业向城镇用户供应的自来水量 B、向自然界排放

— I get at least half an hour of exercise almost every day.

— Oh great!         .

A．Good luck

B．Cheer up

C．Same to you

D．Keep it up

Seeing the coach nodding ________ to her, the little dancer was no more nervous and went on with her performance.

A．obviously

B．amazingly

C．increasingly

D．encouragingly

甲型肝炎病程中，传染性最强的阶段是

A．慢性期
B．潜伏期
C．恢复期
D．黄疸期
E．黄疸前期

以下不是"0.022"托槽优点的是（）。

A.托槽更小，患者更舒适

B.弓丝选择较多

C.治疗早期保持轻力

D.更适用于滑动法关闭拔牙间隙

E.与镍钛方丝配合，可使转矩充分表达而保持温和的力

粘连性肠梗阻