搜题请搜索小程序“爱下问搜题”
问题 单项选择题 共用题干题

女性，68岁，因上消化道出血就诊。上消化道造影见胃底部4cm圆形充盈缺损，中间可见"脐样"龛影。

为确诊应选何种检查（）。

A.上消化道造影

B.腹部平片

C.腹部CT

D.腹部B超

E.胃镜+活检

答案

参考答案：E

填空题

单词拼写。

根据所给汉语提示用适当的单词完成句子。（每空只写一个单词）

1. Don't feel _______ (羞耻) that you have to try several times before you finally stop smoking.

2. These rules and regulations have been _______ (采用) by many major cities.

3. The _______ (实际) cost was much higher than we had expected.

4. Prices have risen _______ (平稳) during the past decade.

5. The government is considering a total _______ (禁令) on the sale of handguns.

6. The president finally handled the issue by _______ (加强) the relationships between the two countries.

7. The greenhouse effect gives the earth's surface the _______ (平均) temperature of 15℃.

8. Huge _______ (数量) of oil were spilling into the Gulf of Mexico last year.

9. Don't call me unless it's ______ (绝对) necessary.

10. Who can ________ (预测) what painting styles there will be in the future?

查看答案
单项选择题

在既有法人融资项目的决策分析与评价中，______是过去已经发生的，在当前决策中可不予考虑。

A．机会成本
B．沉没成本
C．资金成本
D．生产成本
查看答案