2017年爱眼日的宣传主题是:“目”浴阳光,预防近视.如图为某宣传板中关于近视、远视及矫正透镜的部分示意图,其中属于近视眼示意图以及可以佩戴的矫正眼镜依次是( )
A:甲、丙
B:甲、丁
C:乙、丙
D:乙、丁
重3牛的小球轻放入盛有水的烧杯中,溢出2牛的水,小球所受浮力( )
听独白,完成信息记录表。
How far is the school from Peter's home?
It's about kilometers.
How does Peter go to school?
He goes .
How many students are there?
There are students.
Where is the park?
It's the school.
What does Peter do in the park?
He plays with his friends.