在饲喂方式中，饲喂的顺序原则是什么？
参考答案：饲喂的顺序原则是先喂差的，后喂好的。饲喂程序原则上是少喂勤添。
The young man is upset because he doesn’t know how he can get it ______ to the pretty girl how much
he loves her. [ ]
A. across
B. up
C. down
D. around
简述小麦矮化腥黑穗病检疫和防治。
