韩愈说“业精于勤，荒于嬉”，请问这后一句是什么？
参考答案：
后一句是“行成于思，毁于随”。
植物体内运输水分无机盐和有机物的结构分别是（ ）
A．导管、根
B．叶片、筛管
C．筛管、导管
D．导管、筛管
When he learned that his brother had returned from abroad, he set off to his home _____. Which
of the following is not OK? [ ]
A. immediately
B. right away
C. right then
D. right now
E. at once
