题目

The growing speed of a plant is influenced by a number of factors, ____ are beyond our control. A. most of them              B. most of which C. most of that                  D. most of what   答案：B下面改革中影响最大最彻底的是    (    ) A．管仲改革 B．魏文侯变法 C．商鞅变法 D．北魏孝文帝改革