我国的教育很大程度上属于政治教育。

关于利多卡因的抗心律失常作用，哪项错误（）。

A.是窄谱抗心律失常药

B.能缩短普肯耶纤维的动作电位时程和有效不应期

C.对传导速度的作用，受细胞外液K⁺浓度的影响

D.对心肌的直接作用是抑Na⁺内流，促K⁺外流

E.治疗剂量就能降低窦房结的自律性

在Telnet中，引NVT的主要目的是______。

A．屏蔽不同计算机系统对键盘输入的差异

B．提升用户使用Telnet的速度

C．避免用户多次输入用户名和密码

D．为Telnet增加文件下载功能

如图是同学们非常熟悉的几套实验装置，请认真分析并回答下列问题．

（1）甲装置可以用来验证光合作用需要______．若此装置需要一个对照实验，对照实验装置的水槽中应装有______．

（2）乙装置可以用来验证______．

（3）丙装置是验证______的实验．

（4）丁装置可以用来验证植物的哪几种现象？______，若用来验证蒸腾作用，此装置有无不妥之处？______，若有，应如何改进？______，若用来验证呼吸作用，装置应放在______的地方．

阅读理解（共20小题; 每小题2分,满分40分）

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

I felt encouraged by his words and began to swim more calmly.But my clothes stuck to me like a heavy weight.I could hardly stay above the surface.

Counsel saw this.“Shall I cut them?”he asked.

With a knife he cut my clothes from top to bottom and took them of quickly while I swam for both of us.

Then I did the same for Counsel,and we continued to swim near each other.

But we were in serious trouble.The crew（船员）might not have noticed our disappearance.

And if they had,they could not return because the rudder（舵）had broken.Counsel thought of all this,and calmly made his plans.We decided to wait for the ship as long as possible,because we had no other hope of safety.I suggested that we save our strength so that both of us would not be tired out at the same time.This was how we did it:While one of us lay on his back,quite still,with arms crossed and legs stretched out（伸直）,the other would swim and push him along.We changed every ten minutes or so.In this way we could swim for hours,perhaps till daylight.The crash（破裂声）of the ship and the whale（鲸）had appeared at about eleven o’clock.We had about eight hours to swim before daylight.This seemed possible,if the sea remained calm.

小题1:What happened to the man who told the story?

A．He and his companion got into the water to test their strength.

B．He jumped into the water to save the broken rudder.

C．He was knocked into the water by his enemy.

D．He was thrown into the sea when the ship struck a whale.小题2:Why did the two men cut their clothes?

A．Because no people helped them to take off their clothes.

B．Because they couldn’t take off their clothes on the sea.

C．Because they wanted to get rid of their clothes quickly.

D．Because they wanted to lifebuoys（救生圈）with their clothes.小题3:What does the word “still” in the last paragraph mean?

A．not moving

B．even

C．yet

D．however小题4:n order to save their strength,______.

A．one of them pushed the other while swimming and then they changed

B．they both swam calmly

C．they crossed their arms and stretched their legs on the water

D．they lay on their backs instead of swimming小题5:Which one of the following is true?

A．Neither of the two men was good swimmers.

B．The sea was calm before eleven o’clock that night.

C．The story took place at night.

D．The two men had to swim eight hours to catch up with the ship.

子宫完全破裂的临床表现是

A．可以形成阔韧带血肿

B．下降的胎先露回缩

C．子宫出现病理性的缩复环

D．排尿困难出现血尿

E．下腹疼痛烦躁不安