坡度值i=（）

A.LI

B.SI

C.I

D.HI

A.This is Li Ming

B.Hi, Li Ming

C.I'm Li Ming

A.is;thank

B.is;thanks

C.re;thank

D.re;thanks

A、Excuse me, are you Miss Green from Canada？

B、Hi, I’m Zhang Li.

C、How are you.

D、Nice to meet you.

设有如下推理规则。

r1：E1→H1LS=100，LN=0.1

r2：E2→H2LS=50，LN=0.5

r3：E3→H3LS=5，LN=0.05

且已知P（H1）=0.02，P（H2）=0.2，P（H3）= 0.4，请计算当证据E1，E2，E3存在或不存

在时P（Hi|Ei）或P（Hi|~Ei）的值各是多少（i=1，2，3）？

tes and is asking for Li Hua's advice._

LI HUA：Hi, Liu Hui. Have you got something on your __1___

LIU HUI：Hmmm, I'm ... a little ... upset.

LI HUA：Anything wrong It's only the___2__ of the first semester . How are you getting on with your school life

LIU HUI：My classmates are from different places, with all those different backgrounds . I'm not___3__ how to get along with them.

LI HUA：That's not difficult. Try your___4__ to find common topics to talk with them about.

LIU HUI：What kind of common topics

LI HUA：Hobbies, games, hometown, family and so on.

LIU HUI：Well. I see. Breaking the ice is a good way to make ___5__. Thank you very much.

LI HUA：My pleasure.

A.đơn hàng nhập kho 工单入库

B.đơn hàng tài chính nhập kho 采购订单入库

C.đơn hàng lãnh liệu 工单领料

D.lưu giữ qua trang 预留过账

Pauling提出化学键的离子性质百分比与该化学键中两个原子的电负性差别存在如下一种关系：

离子性=

公式中χ_A表示A的电负性。试计算HF、HCl、HBr和HI的离子性百分比。表中极化最强的键应该是KF中K与F形成的化学键，试计算该化学键的离子性。

Pauling和Mulliken电负性尺度下各种原子的电负性值
原子	Pauling电负性	Mulliken电负性
H B C N 0 F Cl Br I Li Na K Mg Ca Al Si P S	2.1 2.0 2.5 3.0 3.5 4.0 3.0 2.8 2.5 1.0 0.9 0.8 1.2 1.0 1.5 1.8 2.1 2.5	3.01 1.83 2.67 3.08 3.22 4.44 3.54 3.24 2.88 1.28 1.21 1.03 1.63 1.30 1.37 2.03 2.39 2.65

m. He asks his friend Ma Kai for help. Li Qiang: Hi, Ma Kai. Do you know the China Railway Museum？ I heard that many people all over the world visit it every day. Ma Kai: Yeah. It is the () professional museum about the railway system in China. Li Qiang: Oh, really？ It must be () . Ma Kai: Yes, you.ll be able to see a large number of () objects, () ,photos, () and multi-media, etc. All these will give you a detailed () to the development of the Chinese railway system in the past century. Li Qiang: Where is the Museum () ？ Ma Kai: It is located in Chaoyang District, about 15 kilometers () of downtown Beijing. Li Qiang: Is it () for you to take my brother and me there？ I.d like someone () with the museum to go with us. Ma Kai: Sure, I.d be very glad to be your tour guide.

A.Cl、Br、I、非金属性依次减弱；HF、HCl、HBr、HI的酸性也依次减弱

B.通入CO2增强漂白粉溶液漂白性；通入SO2也可增强漂白粉溶液漂白性

C.l（OH）3、Cu（OH）3受热易分解；Fe（OH）3受热也易分解

D.Na在空气中燃烧会生成Na2O2；Li在空气中燃烧也会生成Li2O2

听力原文：M: Hi, Linda.

W: Hi, James. What are you doing in the mall？ I thought you said you avoid these places.

M: Oh, I still do, but it's my roommate's birthday tomorrow and I am looking around to get him a present. He's not exactly the easiest person to find a present for.

W: Have you had any ideas of what to get？

M: Not really. I want to get him something he will be able to use instead of something he'lI just put into the closet.

W: That's true. I know often I get something from somebody I hardly ever use. And they stay in the closet or garage before they get thrown away.

M: I know. That's the problem. That's why I hate buying gifts for people because it can never be perfect.

W: Perhaps you are trying too hard to get something very impressive or decorative. I always think a gift should be practical.

M: Oh, I know. His bag is almost wrecked. Maybe I should get him a new one instead.

W: It sounds like a good gift.

M: Gosh, now I am wondering which color I should pick. He is really picky about the color.

W: That's not difficult. What was the last color he chose？ He obviously chose it for a reason.

(1)

A．In a shopping mall.

B．In the dormitory.

C．In the office.

D．In a library.