病毒、细菌感染对粒细胞的影响是（）。 A.生成障碍 B.破坏或消耗过多 C.分布紊乱

To make Chinese students healthier and stronger, China’s Ministry of Education (教育部) has started a campaign. The campaign asks students to run every school day. Te campaign has started since October last year and will last until April this year.

Kids at primary schools have to run 1km per day. It’s 1.5kms for middle school students and 2 kms for high  school and university students. And records will be set for every student. By the end of April 2009, a primary school student has to run 120kms in total/ A middle school students have to run 240kms by that time.

Since the campaign started, people have had different ideas about it. Some people think it is good for students. They think the campaign can make students healthier. Some students have little exercise and the campaign can make them run. But some people don’t think so. They think some schools don’t have enough place for students to do running. If students have to run on the road, maybe it is not safe. They also think there are many ways to become healthier; running is not the only way. So they think the campaign is not a right decision.

小题1:Why Chinese government started the running campaign?   Because _____

A．they think Chinese students like running very much

B．they hope Chinese students become healthier and stronger

C．they know Chinese students have no time to exercise

D．they find out Chinese students are too lazy小题2:How long will the campaign last? ______

A．Seven months

B．Two months

C．In October

D．In April小题3:How many kilometers will a high school student run in total during the campaign?

A．120kms.

B．180kms.

C．240kms.

D．200kms.小题4:Which is NOT right according to the passage?

A．The campaign started from April last year.

B．The campaign asks Chinese students to do exercise.

C．The campaign will set running records for each student

D．The campaign cares about the health problem of Chinese students小题5:Why don’t some people think the campaign is good?

A．Because they don’t think it’s safe enough for a student to run such a long way every day.

B．Because they don’t think it’s safe to make so many students run together every day.

C．Because they think students are busy with their school work and have no time to run.

D．Because they think there are other ways to keep healthy besides worrying about the safe problem.

一束平行光线经凸透镜折射后的传播方向如图（a）所示，由图可知，此透镜的焦距大小约为______cm；若将一烛焰放在此凸透镜左侧2cm处，如图（b），则透过透镜可以看到一个______、______的虚像．

治疗君火相旺，心肾不交型遗精的代表方有：

A．妙香散 

B．黄连清心饮 

C．程氏萆解分清饮 

D．三才封髓丹 

E．知柏地黄丸

循行至第3趾的经脉是（）。

A.足太阴脾经

B.足厥阴肝经

C.足阳明胃经

D.足少阳胆经

E.足太阳膀胱经

SPWM逆变器可同时实现（）。

A、调电压

B、调电流

C、调频率

D、调功率

E、调相位