指针式万用表测量电阻时标度尺最右侧是（）。
A、0
B、∞
C、不确定
参考答案：A
—What do you plan to do for the homeless people?
—I want to ______ some clothes ______ them. [ ]
A. provide; with
B. provide; for
C. give; with
D. buy; to
红外光依据波长可以划分为哪几部分？
