声音信号数字化的过程可分为

mother .the floor when i ...home Mother _____ (sweep) the floor when I _____ (leave) home.这里的答案是：was sweeping 和 left .为什么不能填：swept 和 was leaving 语文文言文中定语后置和宾语前置怎么区分如题 英语语法差,怎么看呢? The boy is ti busy____with the boys____his mother come back home.填play和see的形式.a.playing,to seeb.to play ;to seec.playing,seeing d.to play,seeingThe boy is to busy____with the boys____his mother come back home. 英语中,虚拟语气里为什么,有的从句用过去式,有的却用should do 形式呢比如as if 后面是用一般过去式,而request that 后面就是加should do 形式?还是都可以用呢,不然睡不好吖 英语语法问题:Please give the book to him.这句话为什么不能换成Please give him the book?give sth to sb不是等于give sb （原题是一道单选题）请详细解释一下, 孩子的数学如何补呀?我家读高中的孩子数学第一次月考160分的试卷的132,第二次月考由于不重视只考85分,我很着急,我该怎么办呀? during the test we were supposed to stay in our seats,keep our eyes on ourwork,___to anyone.A and not speak B instead of speaking 英语问题,在we were very happy during our stay in the countryside中,our stay in the countryside是动名词的复合结构吗?可stay不是动名词啊! 中东动荡到底怎么回事? 英语翻译三岁贯汝,莫我肯顾 宾语前置 求正常语序 和 翻译 语文文言文画语序怎么画分啊bu他太会,教教啊 大王来何操 指出宾语 并变成正常语序 Like I’m the only one that’s in command . keep you eyes open 为什么不是keep you eyes opened 不是表被动吗 keep your eyes open.eyes 与open是主谓关系吗 AP 的宏观和微观经济学难吗?1.AP宏观和微观经济学难不难?2.哪个准备时间短 大概需要多久?3.经济学和美国历史 两个里面选的话 选哪个? 想自学微观经济学 什么书比较合适 北非中东动荡的原因 ap宏观经济学 微观经济学的选择只想选一门哪一门容易点 文科生 数理基础不好 ap微观经济学问题In the current labor market,suppose that the wage rate for accountants is ssignificantly higher than the wage rate for economists.In the long run,if you observed that the wage rate for economists rose while the wage rate for ac AP微观经济学都考什么?RT 副词放在什么位置,看下面几个句子The car is badly damaged.可以说成是：The car dadly is damaged.He is still smiling.可以说成是：he still is smiling.He has just bought a car.可以说成是：He just has bought a 新概念里 喷｛ pèn（ ）用这个拼音组一个词 We must keep our street s_______. 面对中东动荡局势,我国该采取什么样的行动? 1You must keep your eyes （ ） when you do eye exercises.A.closedB.close 2( ) is your opinionon this film?It's great.A.What B.How急,说明理由急 副词在句中的位置!除了一些always等的频度副词,其他副词有没有特殊的要求 She said that the sun was much bigger than the earth.---改错这个句子. 宾语前置的标志有哪些? 英语提问：以下句子中的副词可以进行如下位置变换吗?原句：Now experts were sure that the animal really was a tiger.改句1：Experts were now sure that the animal was really a tiger.(now,really均放be动词之后）改句2： 之作为宾语前置的标志时词性?代词?