试题与答案

鱼在水中活动时，鳃盖不停地张开和关闭。这是鱼在（） A．吞咽食物 B．吞咽水 C

来源：www.tikuol.com
题型：选择题

题目：

鱼在水中活动时，鳃盖不停地张开和关闭。这是鱼在（  ）

A．吞咽食物

B．吞咽水

C．呼吸

D．散热

答案：

被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0423/8738404f330c67014337d790659a4b03.html

下面是错误答案，用来干扰机器的。

小题1:B小题2:(1)B（5分）（2）（10分）解：光路图如图：（2分）光束入射角，（1分）由得： （1分）由几何关系有：，（2分）且 （2分） 代入数据解得：（2分）...

考点：探究实验：鱼鳍在游泳中的作用动物的生活环境和生活习性动物的形态结构和功能
试题推荐
题型：阅读理解
Accident（事故） Report Form
Accident:
A car crashed into a tree.
Some people were trapped in the car.
Weather conditions:
There was a heavy rain.
Date of call:
June 3,2006
Time of call:
9:30 p.m.
Name of caller:
Mrs. Green
Place:
Zhongshan Road, Nanjing
Conditions of victims（受伤者）
:
Mr. Green hurt his head.
Mrs. Green hurt her left leg.
Their daughter felt frightened.
Action:
Policemen arrived at 9:40 p.m. and sent the victims to Gulou Hospital at 9:45 p.m.
小题1:What time did Mrs. Green call the police?
A．At 9:30 a.m. B．At 9:30 p.m.
C．At 9:40 p.m. D．At 9:45 p.m.
小题2:.How many victims were there in the accident?
A．One. B．TwoC．ThreeD．Four
小题3:Whose left leg was hurt?
A．Mrs. Green’s.
B．Their daughter’s.
C．Mr. Green’s
D．Their friend’s.
小题4:What was the weather like that day?
A．It was sunny.
B．It was snowy.
C．It was cloudy.
D．It was rainy.
小题5:Which of the following is TRUE?
A．The car crashed into a wall.
B．Their daughter hurt her leg and was sent to the hospital.
C．The car accident happened on Zhongshan Road in Nanjing.
D．The policemen arrived half an hour later and sent the victims to the hospital.
查看答案
微信公众账号搜索答案