【简答题】读短文,判断正(T)误(F)。 A farmer sits near a tree. He's tired. A rabbit is running fast. It doesn't see the tree and hits the tree. The farmer has the rabbit. He's lucky. He wants to have many rabbits. He d...
【单选题】—Can a rabbit swim? —_____ [ ]
【单选题】You can’t play with your rabbit ______ you finish your homework.
【单选题】A rabbit eat potatoes. doesn't don't didn't
【多选题】畜牧业的作用包括哪些?
A.
畜牧业是满足人们食品数量安全和改善人们食物结构的重要来源。
B.
畜牧业是国民经济中某些工业发展所需原料的主要来源。
C.
畜牧业是提高农业劳动力利用率和农牧民增收的重要途径。
D.
畜牧业是发展有机农业和实现可持续发展的重要前提。
【简答题】请分别写出《天然花岗石建筑板材》技术标准标注下划线部分表示的含义。 《天然花岗石建筑板材》GB/T 18601-2009