写出下面各词的近义词。 断定——（ ） 踌躇——（ ） 陡然——（ ） 懊悔——（

选择适当的选项补全对话。

A: Hello, John.

B: Hi, Mary. Nice to meet you.

A: Nice to meet you,too.    1    

B: Yes, you are right.

A:    2   

B: We can't amve late for class. We can't eat in class and  we can't fight.

A: Can you listen to music after class?

B: Yes, we can.

A:  3  

B: No, we can't.

A:    4   

B: Yes, we do. We have to wear them every day at school.

A:    5   

B: We have to clean the classroom.

A. Do you have to wear uniforms at school?

B. What else do you have to do?

C. What are the rules at your school?

D. Can you run in the hallways?

E. I hear you're studying in Yu Ying Middle School.

病历摘要：男性，77岁。反复右下腹痛，偶有腹泻，右下腹扪及腹块，轻压痛。肠镜检查示回盲瓣狭窄。行X线检查。

2、诊断依据是什么？

一个比是6：13，如果比的后项乘2，要使比值不变，前项应______．

He _____ the bag, but saw nothing in it. [ ]

A. looked through  

B. looked into    

C. looked out of    

D. looked up

根本而言，民主只能是手段而不是目的。