简述世界教师教育改革的共同趋势。

血管壁的玻璃样变性主要发生于（）。

A.大动脉

B.中等动脉

C.大静脉

D.细小动脉

E.微动脉

《中华人民共和国药品管理法》第58条规定，医疗机构应当向患者提供所用药品的

A．生产批文

B．说明书

C．药品标准

D．价格清单

E．检验报告

Long, long ago, there was an island where all the feelings lived: Happiness, Sadness, Knowledge and all of the others, including Love.

One day it was announced to the feelings that the island would sink, so all built boats and left, e  小题1:    Love.

Love was the only one who stayed. Love wanted to hold out until the last possible moment.

When the i  小题2:   had almost sunk, Love decided to ask for help.

Richness was passing by in a large boat. Love said, “Richness, can you take me with you?”

Richness a__小题3:____, “No, I can’t. There is a lot of gold and silver in my boat. There is no r  小题4:  for you.”

Love decided to ask Vanity who was also p 小题5:   by in a beautiful boat. “Vanity, please help me!”

“I can’t help you, Love. You are all wet and might break my boat,” Vanity replied.

Sadness was close by, so Love asked, “Sadness, let me go with you.”

“Oh…Love, I am so sad that I need to be by m  小题6:  !”

Happiness passed by. But she was so happy t  小题7:   she did not even hear when Love called her.

Suddenly, there was a voice, “Come, Love, I will take you.”

It was an elder. Because of being too excited, Love even forgot to ask the elder where they were going. When they a  小题8:   at dry land, the elder went her own way. Realizing how much was owed the elder, Love asked Knowledge, another elder, “Who helped me?”

“It was T  小题9:  ,” Knowledge answered.

“Time?” asked Love, “But why did Time help me?”

Knowledge smiled with deep wisdom and answered, “Because only Time is able to understand how v  小题10:   Love is.”

如图（1）所示，某桥梁工程部门在一次工程作业中，利用汽车将重为G，高为h0的柱形实心铁块，从水深为h1的河底竖直打捞上来。汽车速度为υ，且保持恒定。水的密度为ρ0，铁的密度为ρ1。不计滑轮的摩擦和绳重，不考虑水的阻力和物体排开水的体积对水面高度的影响。请完成下列有关分析和计算。

（1）铁块上升过程中所受浮力的最大值；

（2）推导出自铁块上表面与水面相平升至整体刚露出水面的过程中，绳子的拉力随时间变化的关系式（从铁块上表面与水面相平时开始计时）

（3）在图（2）中，定性画出铁块自河底升至滑轮处的过程中，绳子拉力的功率P随铁块上升高度h变化关系的图象。

如何使用钳型电流表？