下列属于β系数特点的是( )。 A.β系数绝对值越大,表明证券承担的系统风险越小

题型:多项选择题

问题:

下列属于β系数特点的是( )。

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,表明证券或组合对市场指数的敏感性越强

C.β系数是衡量证券承担系统风险水平的指数

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

考点:证券业从业考试证券投资分析证券投资分析
题型:多项选择题

患者,女性,23岁。产后第5天出血寒战、高热、腰痛,尿白细胞30个/HP,且伴有夜尿增多、下腹痛,肾区叩击痛(±),血压轻度升高。血象:白细胞18×10/L。应该如何用药()。

A.先观察体温热型,查出病因后再作处理

B.首先用广谱抗菌药物

C.抗菌药物治疗时少饮水

D.抗菌药物治疗应在取尿标本送检后立即进行

E.暂不用抗菌药物,待细菌培养结果、药敏结果出来后再用抗菌药物

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Roger was a thief,but he wasn't very clever. When he was in school, he stole apples or oranges from other children. Sometimes he stole pencils or books from other children. But he always got caught.

The teacher spoke to Roger's parents and they tried to stop him from stealing things, but Roger wouldn't stop. He kept stealing.

When he was older, he began to steal from stores, but he was still stupid. Once, he went into a store wearing the clothes he had stolen the day before. The still had the price tags(标签) on them, and the store manager called the police. They warned him that he would go to jail if he didn't stop stealing.

Then Roger decided to rob a bank. He planned everything. He got some gloves so that he would not leave fingerprints, and a mask so that no one would recognize him.

" But what if they recognize my voice?" he thought.

He decided to write his message on a piece of paper so that he wouldn't need to speak. He found an old envelope and wrote "give me all the money" on the back of it. He got a toy gun and went to the bank. He put on his mask and his gloves( and showed the note to the bank clerk. The clerk gave him all the money, and Roger ran out of the bank and went home.

Ten minutes later he heard a knock on the door. It was the police. They had come to arrest him for robbing the bank.

" How did you find me so quickly?" asked Roger

" It was easy," said the police." Your address was on the envelope!"

小题1:How old was Roger when he started stealing things?

A.10

B.40

C.70

D.22小题2:What is something Roger did not steal?

A.money

B.food

C.a shirt

D.a bicycle小题3:In this story, the underline word  "recognize"  means __________.

A.know

B.make

C.watch

D.understand小题4:How did the police catch Roger?

A.His friend worked in the bank.

B.The clerk knew his voice.

C.They found his picture.

D.They knew his address.

题型:多项选择题

恩氟烷和异氟烷的MAC值分别是()

A.恩氟烷2.20%,异氟烷1.57%

B.恩氟烷1.15%,异氟烷1.68%

C.恩氟烷1.09%,异氟烷0.75%

D.恩氟烷0.67%,异氟烷0.46%

E.恩氟烷1.68%,异氟烷1.15%

题型:多项选择题

提出三个增长率相等,被认为是“刀刃上的增长”的增长模型是()。

A.哈罗德-多马模型

B.索洛模型

C.AK模型

D.拉尼斯—费景汉模型

题型:多项选择题

对于给出的一组权w=5,6,8,12,通过霍夫曼算法求出的扩充二叉树的带权外部路径长度为______。

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