题目

Only by working hard can you ________ respect from others.（  ） A. show      B. pay      C. earn      D. give    答案：C  直接写出下面各题的得数．(分数，先填分子，后填分母) (1)20×12= (2)140÷7= (3)0.8－0.3= (4)－= (5)100×25=