流域内各点的雨量汇流速度有快有慢，汇流时间也有长有短。等流时

搜题请搜索小程序“爱下问搜题”

问题单项选择题案例分析题

流域内各点的雨量汇流速度有快有慢，汇流时间也有长有短。等流时线是流域内降雨汇流到河口时问相等的各点连接成的线。读图回答问题。

图中流域内河流流向为（）

A．西南-东北

B．西北-东南

C．东北-西南

D．东南-西北

答案

参考答案：A

填空题

根据句子意思或音标写出单词的适当形式

1. My cousin Jack is in Class 2, G__________ 7 in our school.

2. The family like eating in the r__________ instead of(代替) at home on Sunday.

3. T__________ is the fifth day of a week.

4. We do morning e__________ every day.

5. There are 6 h__________ students in my school.

6. The sports shoes are those __________(child).

7. Daniel, __________(not talk) in class.

8. This pair of blue jeans __________(be) beautiful.

9. Millie gets a lot of __________['preznts] at Christmas.

10. Where are my __________[ 'trauzz ]?

比较题

(1).丁香()
(2).金银花()
(3).西红花()
(4).洋金花()

A.含挥发油

B.含绿原酸和异绿原酸

C.两者均是

D.两者均不是