机械性肠梗阻病人，当腹部X线检查显示下列哪种变化时，应考虑绞

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问题单项选择题 A1型题

机械性肠梗阻病人，当腹部X线检查显示下列哪种变化时，应考虑绞窄性肠梗阻的可能（）

A.近段肠管扩张，远端肠管未见气体

B.扩张肠段呈阶梯型排列

C.孤立性肠段扩张且较固定

D.有气液平面

E.大小肠均胀气

答案

参考答案：C

阅读理解

阅读理解。

There are four seasons in a year. They are spring, summer, autumn and winter. It's warm in spring. We

can go out to play. It's rainy and hot in summer. In autumn, the leaves(树叶) turn yellow. It snows in

winter. We can make snowmen. Winter is my favourite season.

1. How many seasons in a year?

A. Four.

B. Five.

C. Three.

2. In __________,we can go out to play. It's warm.

A. summer

B. spring

C. winter

3. It's hot in summer. It's _______,too.

A. cool

B. rainy

C. snowy

4. The trees are yellow in ___________.

A. spring

B. autumn

C. winter

5. I like _____________best.

A. winter

B. autumn

C. spring

单项选择题

电子商务促使企业进行业务重组的主要原因是业务载体的变化和业务_______的变化。

A．范围

B．对象

C．手段

D．需求