阅读理解，正确的选A，错误的选B。
A mother camel was walking with her son through the desert (沙漠). They were looking for water
and grass.
The son asked his mother what water and grass looked like. The mother replied (答复，回答) that
water was blue and looked like the sky, while grass was green and nice.
After they had walked a day and a night, her son suddenly cried."Look, mother, there's water and
grass over there."
"What a foolish (傻) talk, child!"
The water and grass were on the left, while the desert was on the right. Because the mother camel
had been blind in her left eye since she was a baby, she could see nothing with her left eye.
After they had gone on another day and night, the young camel found a second oasis (绿洲), but his
mother still did not believe him. She said that was not an oasis, but a desert. She said she knew more
than her son and couldn't be wrong.
Her son got angry. When he saw an oasis again, he left his mother without telling her. He ran into the
grass and ate his fill. (吃了一个饱).
( )1. The mother camel could see things with both her eyes.
( )2. The young camel saw the oasis just on the left.
( )3. The son did not know what water and grass looked like when they met the water
and grass for the first time.
( )4. The mother camel did not believe her son because she thought she knew more than her
son and couldn't be wrong.
( )5. It was when the second time that the young camel got very angry and left his mother.
缺失，余牙正常，义齿修复设计金属支架，
上设置RPI卡环组。