下列关于水的说法中，不正确的是（ ） A．水在通电时产生的氢气和氧气的体积比为2

稳定型心绞痛的临床表现不包括（）

A.胸痛

B.压迫、发闷

C.针刺或刀扎样锐性痛

D.持续3～5分钟

E.舌下含用硝酸甘油可缓解

固定资产的简单再生产是保证社会再生产继续进行的( )。

A．必要条件

B．重要手段

C．法律规定

D．投资项目

使一定质量的理想气体按图甲中箭头所示的顺序变化，图中BC段是以纵轴和横轴为渐近线的双曲线。

(1)已知气体在状态A的温度T_A=300K，则气体在状态B、C和D的温度各是多少？

(2)将上述状态变化过程在图乙中画成体积V和温度T表示的图线（图中要标明A、B、C、D四点，并且要画箭头表示变化的方向）。说明每段图线各表示什么过程。

It’s such a shame to lose a free throw. Playing in the court has pressure from the opponent, time, your teammates, the audience, and yourself. You have to shoot the ball despite all the pressures around. But with a free throw, you have the ball, no one will try to get it from you, and you have all the time to shoot the ball. But why is it that many players, even good shooters, miss most of their free throws? Maybe they need more practice or maybe they need to apply more ways to improve their free throw.

Improve your player or your free throwing skills by following the tips below:

Make it personal. The truth is, there is no rule on how one should handle and throw the ball in a free throw. What matters is that the player should shoot the ball from the free throw line no matter how he does it. So when trying to improve your free throw shooting, better stick to what works the best for you. Do not copy other people’s techniques. Make it your own and leave those techniques as theirs.

Formulate (公式化) a repetitive way of shooting the ball. A free throw should be personalized. But it should also be repetitive. You should be able to repeat your free throw techniques whether you are in your court or in another court, whether you are energized or tired. You can’t say you have a personal free throw technique if you can’t repeat it over and over again.

Shoot at the same position and distance for every free throw. Basketball courts may be located in different places or maybe marked with different paint colors. But all of these courts maintain the same distance from the ring to the free throw line. Familiarize your perfect position when making your free throws. That should help you do your perfect throw.

小题1:Why do so many players fail to make a successful free throw?

A．Because they don’t have any special skills

B．Because they are lacking in practice and tips.

C．Because they are not so familiar with rules

D．Because many of them are green hands.小题2:What can you do if you want to be a wonderful free thrower?

A．Learn from others.

B．Form your own throwing skills.

C．Keep active in the court.

D．Learn to throw in different locations.小题3:The underlined word “ring” in the last paragraph may most probably mean “________”.

A．sound

B．basket

C．ball

D．group小题4:Which of the following might serve as the best title of the above passage?

A．How to play basketball successfully in the court.

B．How to improve your basketball throw skills.

C．How to gain more points in throwing.

D．How to improve your basketball free throwing.

下面哪个数据库可以实现原貌打印封面、目录页（）。

A、CNKI

B、维普科技期刊全文数据库

C、万方全文数据库

D、sinomed