育才小学有24个班,平均每班40人,他们共向穷困地区小学捐献图书4800本,平均每人捐图书多少本?
4800÷24÷40,
=200÷40,
=5(本).
答:平均每人捐图书5本.
Abbreviation is by using the first letter of each word in the phrase. [ ]
A. making
B. made
C. forming
D. formed
完好设备标准是什么?