在等比数列{an}中,a6,a10是方程x2-8x+1=0的两根,则a8=___

题型:填空题

问题:

在等比数列{an}中,a6,a10是方程x2-8x+1=0的两根,则a8=______.

考点:等比数列的通项公式
题型:填空题

人民币汇率形成机制改革坚持主动性、可控性、渐进性的原则,2005年7月21日,人民币汇率形成机制改革启动,开始实行以市场供求为基础、参考一篮子货币进行调节、有管理的浮动汇率制度。自汇率形成机制改革以来,人民币汇率弹性逐步扩大,并形成双向波动的格局,呈现稳中有升的态势。
根据以上材料,回答下列问题:

( )是指经国家外汇管理局批准可以经营外汇业务的境内金融机构(包括银行、非银行金融机构和外资金融机构)之间通过中国外汇交易中心进行人民币与外币之间的交易市场。

A.银行间外汇市场

B.同业拆借市场

C.票据市场

D.债券市场

题型:填空题

阅读理解。

     Once, there was a man whose name was Tom. He loved his wife very much. A special day was

coming. It was his wife's birthday. Tom decided to buy something for her.

     The next day he went home and said to his wife, "I bought something for you." "Thank you!" said his

wife happily. "What have you bought for me?" "I've bought a gold ring. Here it is." He took it out for his

wife to see. Carelessly, he dropped it onto the ground. He began to look for it on the ground, but it was

dark in the house and he could not see anything. Then he went out and began to look for it in the street.

     He looked and looked. After a while, a friend came along. "What's the matter with you?" asked his friend.

"I am looking for my ring. It was for my wife. But I lost it just now." said the poor man."Where did you

lose it?""I lost it in my house.""You lost your ring in your house, but you are looking for it in the street. How

foolish you are!" "Ah," said the man,"But it is dark in my house. I will never find it there. Anyhow, here in

the street, it is much brighter, I can see everything more clearly."

     My dear friend, do you think Tom could find his gold ring in the street?

1. Whom did Tom buy a ring for?

A. His son.

B. His mother.

C. His wife.

2. Where did Tom lose his ring?

A. In the street.

B. In his house.

C. At his friend's house.

3. The man looked for the ring in the street because _______.

A. he lost it in the street

B. it was much brighter

C. his friend came up

4. The friend thought the man was _______.

A. foolish

B. clever

C. good

题型:填空题

城市整体空间的组织理论不包括______。

A.从经济合理性出发的空间组织理论
B.从城市土地使用形态出发的空间组织理论
C.从城市道路交通出发的空间组织理论
D.从城市规划出发的空间组织理论

题型:填空题

具有制酸止痛功效的是()。

A.龙骨

B.磁石

C.石决明

D.琥珀

E.羚羊角

题型:填空题

水疝的病因病机哪项除外均正确()

A.肾虚气化不全,水液集注囊中

B.脾虚水湿不化,集注囊中

C.外感湿热,蕴结囊中

D.阴虚血热,与湿热互结囊中

E.外伤手术,血瘀络阻,水湿不行,聚于囊中

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