4吨160千克=______千克；6.45时=______时______分．

下列关于β系数的说法中，正确的是（）。

A.β系数绝对值越大，表明证券承担的系统风险越小

B.β系数绝对值越大，表明证券承担的系统风险越大

C.β系数是衡量证券或组合的收益水平与市场平均收益水平差异的指标

D.β系数是反映证券或组合的收益水平对市场平均收益水平变化的敏感性

律师王某在代理一起民事诉讼案件时，编造了一份对自己代理的一方当事人有利的虚假证言，指使证人李某背熟以后向法庭陈述，致使本该败诉的己方当事人因此而胜诉。王某的行为构成何罪( )

A．伪证罪
B．诉讼代理人妨害作证罪
C．妨害作证罪
D．帮助伪造证据罪

高渗脱水的治疗一般用（）

A.5%葡萄糖液

B.等渗盐水

C.0.9%盐水+KCl

D.1/3～1/4张等渗电解质溶液

E.50%葡萄糖液

各种痹症迁延不愈，痰瘀痹阻，治疗宜选用（）

A.桃红饮加味

B.炙甘草汤加味

C.独活寄生汤

D.蠲痹汤

E.犀角散加味

阅读下面短文，根据第1至第3小题的具体要求，简要回答问题。

     A long time ago, Milton S. Hershey, the creator of the popular chocolate bars, was dipped in warm

chocolate. I know all about it. My grandfather was there!

     At nineteen, Hershey established a candy business in Philadelphia. Although it failed, he tried again

in several other cities and succeeded with Crystal A Caramels. But Hershey was not content. He began

experimenting with chocolate and managed to sell his first chocolate bars in 1900. They were an instant

success. In 1903, Hershey built a factory.

     Hershey was usually pleasant and kind and enjoyed a good joke. However, in his chocolate factory,

he held high standards for all the workers. He was both respected and feared. His anger would burst

out when things didn't go as he'd expected, and workers were fired for mistakes.

     My grandfather began working in the factory as a young man. His job was to push the vats (大桶)

of warm chocolate to a storage area. To do this, he had to push the heavy vats up a ramp (斜坡) and

across the walkway. One day, Hershey was walking backward on the walkway while my grandfather

was pushing a vat of chocolate up the ramp. Bump. Clunk. Ker-plop! Hershey fell backward into the vat.

Everyone else held their breath and ran up to pull him out. Grandfather froze in fear. Was he going to

lose his job?

     Hershey stood stiffly with his hands on his hips. Color rose in his face. He said something in a low

voice. Then he smiled. "It's not your fault, son," he said. "I need to watch where I'm going." He put

some chocolate in his mouth. "Mmm, that's good," he said. Everyone laughed. The tour continued, with

Hershey dripping chocolate as he went. And Grandfather kept his job.

1. What did Grandfather do in Hershey's factory? (回答词数不超过12个)

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2. Why didn't Hershey fire Grandfather? (回答词数不超过10个)  

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3. What does the incident show us about Hershey? (回答词数不超过15个) 

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