A:no sooner had I
B:I have no sooner
C:hardly had I
D:scarcely I had
如图,梯形ABCD中,AB∥CD,AD=BC,点E在边AD上,BE与AC相交于点O,且∠ABE=∠BCA.
以下谚语或俗语,与所蕴含的生物学知识不相符的是( )
40个三年级小朋友重大约1吨. .