There was lots of people there.____
A.乙烯 B.乙醇 C.乙酸 D.油脂 E.氨基酸 F.淀粉
多音字组词
藏cáng____ 长cháng ____ 教jiāo____ 种zhǒng____
zàng____ zhǎng____ jiào____ zhòng____