关于慢性肾炎的临床表现下列错误的是（）
A.轻中度水肿
B.中等程度蛋白尿
C.高血压
D.不导致尿毒症
E.贫血
参考答案：D
用所给词的适当形式填空。
1. Look! They________(study) in the classroom.
2. My brother often_________ (watch) football matches on TV.
3. Don't talk too loudly(大声地). My father_________(sleep) in the bedroom.
4. We can't go out now. It's_________(rain) so hard.
5. It's________(cloud) ,but it's very hot.
什么是保证类预订，包括哪几种方式？
