我们一般说decreased by 40%,但可以说decreased about 请说明理由,

我们一般说decreased by 40%,但可以说decreased about 请说明理由, 是不是a is decreased by b 是b减a A decreased by b 就是a是不是a is decreased by b 是b减a A decreased by b 就是a减b A is decreased by b 是a减b 为什么? A decreased by B是A-B还是B-A? The price of a gallon of gasoline at the pump increased by 10 percent at thea.increased; increased b.increased; decreased c.increased; did not change d.decreased; decreased e.decreased; increased The basis of property must be increased by capital expenditure and decreased by capital returns. if 5/4 of x is 20,what number is x decreased by 翻译就好! sat a is decreased by b 是 a-b还是b-a啊 A number decreased by the difference between eight and the number. The traffic accidents in the city decreased by 30% last year.The traffic accidents in the city decreased 30% last year.两句都对么?意思一样么? If Margarets weight is decreased by 5% ,it will become 53.2 kg .What is Margaret's weightb now? Decreased vision 中Decreased是什么词性? 宏观经济的题an open market ____ by the Fed increases money supply,which leads to ____ interest rates and increased GDP A.purchase,decreased B.Sale.decreased C.Sale,increased D.purchase,increased x varies directly as y but inversely as z.if y is increased by 30% and z is decreased by 30%,how does x vary? 英语句子The year 1993 decreased by 4 units.中的by是到的意思是达到了还是减少了4的意思? 冷却塔我们一般说排热量还是排水量啊 一般的超滤系统有浓水吗?我们老师说通常没有. 英语怎么说某某某一般在.我们说某某某...英语口语中我们说bla?