问题 单项选择题

38岁男性患者,因进行性消瘦伴体位性头晕,饭前经常心悸,手抖就诊,既往结核病史(-)。查体消瘦,皮肤色素沉着,BP78/50mmHg,血糖3.0mmol/L,抗。肾上腺抗体(-),皮质醇72mmol/L(正常165~441mmol/L)。为进一步鉴别原发性或继发性肾上腺皮质功能减退,下述检查最有意义的是()

A.测血浆肾素、醛固酮

B.测24小时尿17-羟类固醇

C.测24小时尿游离皮质醇

D.测24小时尿17-酮类固醇

E.ACTH刺激试验

答案

参考答案:E

阅读理解

China has decided to take actions to stop the use of free plastic bags. Supermarkets and shops in China aren’t allowed to offer free plastic bags.

Every year, people use too many plastic bags and fail to deal with them in a right way. While we offer quick and useful service to customers, the plastic bags cause serious pollution as well. For example, people will throw away plastic bags after they use them. The waste plastic bags may fly with the wind and make the environment ugly. Worse still, animals may eat them by mistake and die. Besides, It’s difficult to find new land to put the waste plastic bags in, so plastic bags are burned. The burning plastic bags give out harmful gas.

So the government encourages people to go back to carry cloth bags and use baskets for their shopping things.

根据短文内容按要求完成下列各题。

小题1: What aren’t supermarkets and shops allowed to offer?(根据短文内容回答问题)

                                                                             

小题2:Do people deal with the waste plastic bags properly? (根据短文内容回答问题)

                                                                             

小题3:What kind of pollution do the burning plastic bags cause? (根据短文内容回答问题)

                                                                             

小题4:从短文中找出与下面句子划线部分意思最相近的短语。                      

The plastic bags cause serious pollution, too.

小题5:In the passage, the underlined word “them” refers (指) to          .

单项选择题