— does it take you to walk to the park from your home?
— About ten minutes.
A:How much
B:How long
C:How far
读拼音,写词语。
mì fēnɡ
zǐ sè
lián mián
____
如图,矩形ABCD∽矩形ECDF,且AB=BE,求BC与AB的比值.
食物在消化道内分解成可以被细胞吸收的物质的过程叫做____.