问题
选择题
A great many students have dropped out of school and now the number of our class has____51.
A．increased to
B．increased by
C．reduced by
D．reduced to
答案
D
考查短语辨析。由句意可以排除A,B两项；reduce to “减少到”后接减少后的总量；reduce by“减少了”后接纯减少的量或比率。
