18的因数中有几个质数

the plate 问题昨天已经提出来了.翻译：The problem has been come up withyesterday.是现在完成时还是过去完成时The problem has been come up with yesterday.还是The problem had been come up withyesterday.?如果是问题以前以前提出 这个问题已经在昨天的会议中提出了.This problem has been come up with at the meeting yesterday.这个问题已经在昨天的会议中提出了.This problem has been come up with at the meeting yesterday.这里是用has还是had? It seems that our eyes are playing a joke on us翻译 get the facts straight什么意思? let me get it straight什么意思 get straight I go there on foot（同义句）怎么改 英语翻译怎么填?为什么? We left him alone 同义句 we left him ( ) 已知△ABC,∠C=60°,AC=2,BC=1,点M是△ABC内部或边界上一动点,N是边BC的中点,则向量AN*向量AM的最大值为 三角形,角C=60°,AC=2,BC=1,点M是三角形ABC内部或边界上的一动点,N是BC的中点,则向量AN乘AM的最大值 we address him as Mr.wang 写出同义句 we（ ）him ( )wang怎么写? My brother exercises （for times a week）对括号里提问 I think two___is enough to finish the task.a.weeks time b.week's time c.weeks' time d .week I think he _(return) from England in a week. In 2008,many people in the USA s________ Obanma to be the president.单词填写. what about Pears People in Australia vary in size,color and origins.The prices of fish vary according to market changes.The weather in this city varies from day to day. 请问奏鸣曲、变奏曲等等的乐曲种类有什么?各有何特点?如何区分? 变奏曲怎么样 He speaks English意思He speaks English.He doesn't speak English.Does he speak English?以下这种说法是错误的什么?He is speaks English.He isn't speak English.IIs he speak English? He speaks English goodly.有错吗 用两种规格的木条各两根,围成一个平行四边形,底是15厘米,高是8厘米,如果把它拉成长方形,面积比平行四边形大30平方厘米,求平行四边形的周长. 英语选择He speaks_fast for us_第一个空是too 第二个空是to follow还是to follow him呢? 物理化学学科对物理水平要求高吗 真实的爱的故事作文怎么写 关于跃迁释放能量问题.氢原子基态能级为-13.6eV,一群氢原子处于量子数n=3的激发态,他们向较低能级跃迁时,放出光子的能量可以是（） A.1.51eV B.1.89eV C.10.2eV D.12.09eV 已知正方形ABCD,E、F分别为BC、CD的中点,若用向量AE=向量a,向量AF=向量b来表示向量AB,则向量AB=? 找一首英文歌曲 其中有一句好像是 you tell me yes you tell me 有一句好像是 you give me life you give me love 什么什么的 you tell me yes you tell me no 一封闭钟罩中放一杯纯水A 和一杯糖水B,静置足够长时间后发现（ ）(A)A 杯水减少,B 杯水满后不再变化；(B)A 杯变成空杯,B 杯水满后溢出(C)B 杯水减少,A 杯水满后不再变化；(D)B 杯水减少至空杯 求穿越回古代的,利用现代的物理化学等知识的小说类似于纳妾记,但是纳妾记涉及物理化学的很少,连水利发电,玻璃制造,石油冶炼都不会,最好能利用毛泽东思想,社会主义制度,三大纪律八项