同一平面内,半径分别是2cm和3cm的两圆的圆心距为5cm,则这两圆的位置关系是
A:相离
B:相交
C:外切
D:内切
诗人写自己的家乡,写了家乡春天的哪些景象?他是从哪些感官角度来描写的?
根据材料内容,选择正确答案。
There are 50 students in Class 8. Now they are doing a survey about how they spend their pocket money. Some spend it on books, and others spend it on visiting. What about you? Please read the form and answer the questions.
10%
55%
12%
13%
Buy some CDs and computer games.
Buy some snacks and drinks.
Buy some books in the bookshop.
Save it up and spend it traveling on holiday.
Buy some gifts for friends.
如图,△ABC中,AB=AC=1,∠BAC=45°,△AEF是由△ABC绕点A按顺时针方向旋转得到的,连接BE、CF相交于点D.