将凝胶电泳的高分辨率与免疫化学方法的高灵敏度结合起来的电泳技术为A．醋酸纤维薄膜电泳

阅读理解

Mr. King is a tall and strong man. He teaches P.E. in a middle school. He wears a long beard（胡子）and takes good care of it.

It was Sunday yesterday. There was a big football match of the year on the playground in the centre of the city. Mr. king likes the game very much and of course he was going to watch it. With his friends' help he got a ticket a few days ago.

After breakfast he hurried to the bus stop, but a lot of people were waiting there. A bus came and he hardly got on. There were plenty of people in it and it was difficult for them to put their feet. He had to grip（抓住）a back of the chair. At the next stop a boy got on the bus. He was short and couldn't grip anything. Suddenly the bus stopped and the boy hardly fell onto the floor. He looked around and saw Mr. King's beard and grip it. The man found it at once and called out, "Let go of（松开）my beard, boy!"

"Are you going to get off, sir?" asked the boy.

小题1:Mr. King is a ___.

A．player

B．runner

C．teacher

D．driver小题2:Mr. King was going to watch the match because ___.

A．he teaches P.E. in a middle school

B．he likes football very much

C．he had already got a ticket

D．he didn't go to work yesterday小题3:It was difficult for Mr. King to stand because ___.

A．he had drunk too much

B．the bus was too small

C．he got on the bus too late

D．it was very crowded in the bus小题4:The boy gripped Mr. King's beard because ___.

A．he was afraid to fall again

B．he wanted to make the man angry

C．he hoped the man to find a seat for him

D．he hoped the man to get off soon小题5:Mr. King was afraid ___, so he shouted at him.

A．the boy would pull him down

B．the boy would hurt his beard

C．the boy could be hurt again

D．the boy would borrow his ticket

某导体两端的电压为120V，通过的电荷量为150C，通电时间为100s．求：

（1）导体消耗的电功率？

（2）导体产生的热量？

影响冠状动脉血流量增多的因素是

A．心室收缩期延长
B．心率增加
C．心室舒张期延长
D．主动脉舒张压降低
E．体循环外周阻力减小

碎玻璃加入方式有哪些？各有何利弊？

根据世界贸易组织《纺织品与服装协定》的规定，发达国家的纺织品配额将在2005年1月1日取消，我国将充分享受世界贸易组织纺织品一体化的成果。( )