判断题：黄疸患者进行B超探测的价值在于确定是否为梗阻性黄疸，进而可发现梗阻部位及性质。

题型：选择题

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题型：判断题

需要是指个体内部的某种缺乏或不平衡状态。

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题型：填空题

Directions: For each blank in the following passage there are four words of phrases marked with A, B, C and

D. Fill in each blank with a word that best fits the context.

Dear Mom and Dad,

I enjoy working as an account in Chicago. Living in a city is really much 1. _____ for my career than living

in a small town. 2. _____ rent is high here, I have already saved more than a few pence, and it feels wonderful

to be no longer dependent on allowance.

Living in the city is also great because of all the entertainment. I am always going somewhere 3. _____ fun-

to weekend brunch buffets, theaters or parties. This weekend, I will even play hostess at my own party.

Today, I bought the latest edition of American Living, 4. _____ had an article about the population mobility

boom. The headline was 'Population Mobility in the USA' and included many quotations. Younger people spoke

about wanting excitement and job opportunities, and elderly people said they were looking for communities of

older people. For some, it seems that there is 5. _____ trend for many retired people to move to warm places.

For some, it seems that the move is permanent, but for 6. _____ it is just seasonal. However, all of them feel

very comfortable living in Florida 7. _____ many adaptations have been made for older people. Perhaps you

two should move there when you retire.

I just wanted you to know that I am happy and 8. _____ my job is going very well. I will write you again

next week.

Yours love,

Jessie

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题型：填空题

(12分)（1）用电子式表示H₂O和MgBr₂的形成过程

H₂O MgBr₂

（2）写出CO₂、Na₂O₂、H₂O₂的电子式：

CO₂ Na₂O₂ H₂O₂

（3） H₂O以键结合，MgBr₂以键结合。NaOH以键结合，Na₂O₂以键结合（填极性键、非极性键、离子键）

（4）、、、D、E 5种粒子（分子或离子），它们分别含10个电子，已知它们有如下转化关系：①；②。

据此，回答下列问题：

①写出①反应的离子方程式。

②和C^-的电子式____________、C^-____________。

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题型：单项选择题

左心衰患者出现呼吸困难与下列哪个因素无关（）

A.体循环充血和水肿

B.肺通气－血流比例失调

C.肺顺应性降低

D.肺毛细血管压增高

E.支气管粘膜充血水肿

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黄疸患者进行B超探测的价值在于确定是否为梗阻性黄疸，进而可发现梗阻部位及性质。