属于世界三大薯类作物的是______。
A.甘薯
B.薯蓣
C.木薯
D.马铃薯
E.参薯
参考答案:A,C,D
As she _________the newspaper, Granny _________asleep.
A.read, was falling
B.was reading, fell
C.was reading, was falling
D.read, fell
列入《进出口野生动植物种商品目录》中属于《濒危野生动植物种国际贸易公约》成员国(地区)应履行保护义的物种禁止进出口。