（）为两次握手协议，它通过在网络上以明文的方式传递用户名及口令来对用户进行验证A、P

新生儿病理性黄疸最严重的并发症是( )

A．胆红素脑病
B．新生儿颅内出血
C．败血症
D．新生儿寒冷损伤综合征
E．新生儿破伤风

　                        　A

The nervous-looking young man had waited for a few moments outside the jeweler's shop before he got enough courage to enter．He was warmly greeted by a young assistant. James felt a rush blood to his face as he explained he would bring in his future wife to choose a birthday present．The assistant listened carefully and told him he'd better buy a necklace. He wasn't used to buying jewelry and was a little worried about overspending. After some discussion as to reasonable price and type（类型）, the assistant showed him dozens of necklaces and helped him to choose. At last James chose one and left the shop promising to return at five o'clock. When, half an hour later, James did return to the shop with his future wife, Laura, the assistant acted as if she had never seen him before. When she was asked to show them some necklaces, she first brought out some inexpensive ones for them to choose and then gave them the one she had prepared. A choice was soon made and they went away, satisfied. James would certainly come back to buy what he wanted when he got married.

小题1:A good title（题目）for this passage is ________.

A．A Clever Assistant

B．Buying a Birthday Present

C．How to Choose a Necklace

D．A Brave Young Man小题2: Why did the young man look nervous?

A．Because he had never bought jewelry before.

B．Because he would get married.

C．Because he didn’t have enough money to buy a satisfying present.

D．Because he feared he would be laughed at by shop assistants.小题3:The word "overspending" in this passage means ________.

A．spending too much money

B．spending too much time

C．spending more time than be planned

D．spending too much time and too much money小题4:When James told the assistant why he wanted to buy a present, his

face________.

A．turned pale

B．turned black

C．turned yellow

D．turned red小题5:James would come back to buy what he wanted because ________.

A．the necklace was good

B．Laura liked the necklace

C．the assistant knew how to satisfy the people who came to buy things

D．the assistant who served James was very beautiful

下列关于《中华人民共和国政府采购法》的说明，正确的是( )。

A．政府采购实行集中采购
B．政府采购的采购人包括国家机关、国有企业、事业单位
C．采购人采购纳入集中采购目录的政府采购项目，必须委托集中采购机构代理采购
D．邀请招标是政府采购的主要方式

李泽厚在《美的历程》一书中说：“随着社会中资本主义因素的出现和发展，审美趣味受商品生产、市场价值的制约，供宫廷、贵族、官僚、地主、商人、市民享用的工艺产品呈现出可类比欧洲洛可可式的纤细、繁缛、富丽、艳俗、娇柔做作等风格。”下列我国古代的手工艺产品能体现出上述风格的是（）

①珐琅彩双环瓶

②青花五彩碗

③三星堆青铜礼器

④江宁织造局云锦

A.①③

B.①②④

C.②③④

D.①②③④

线性能量传递（LET）与氧增强比（OER）的关系，下列正确的是（）。

A.LET与OER有关，对OER影响不大

B.随着LET增高，OER下降

C.LET与OER无关

D.随着LET增高，OER增高

E.以上说法均不对