I didn't hear from my mother.=
I didn't get a letter from my mother.=
I didn't have a letter from my mother.=
I didn't recieve a letter from my mother.
He replied to the engineer.=
He anwered the engineer.
I didn't hear from my mother.=
I didn't get a letter from my mother.=
I didn't have a letter from my mother.=
I didn't recieve a letter from my mother.
He replied to the engineer.=
He anwered the engineer.
最新问答: 幼儿园买进大小两种毛巾各40条,共用258.8元.大毛巾的单价比小毛巾单价的2倍多0.11元.这两种毛巾单价各是多少元? He hasn't had a visitor since_______. 甲烷 与乙烷的分子组成相同吗 在一次越野赛跑中,当小明跑了1600m时,小刚跑了1450m,此后两人分别调整速度,并以各自新的速度匀速跑,又过100s 正常眼睛的明视距离为______cm. 天气晚来秋前一句是什么? 一定温度下,饱和溶液增加溶剂一定变为不饱和溶液, 环境描写的句子(50字左右) 已知方程组3x+y=k+1 x+3y=3 的解满足0 What’s your favorite progress?请帮忙翻译这句话, 氢氧化钠和s反应 为什么是na2so3而不是na2so4呢? 什么天之功 和它的意思 ( )的花草?填个词语 点A(m+2,n+2),B(n-4,m-6)关于直线4x+3y-11=0对称,求m的值和n的值 全血细胞分析报告单白细胞数 5.5(4.0-10.0)淋巴细胞绝对值1.0(1.0-3.3)中间细胞绝对值0.2(0.2 尽的同音字组词 数学数学家如何证明1+1 我还是不太明白为什么不能选which 一个多项式A减去4X的平方-3Y+5的差是2Y+6,则A=? 设集合A={|a+1|,3,5},B={2a+1,a2+2a,a2+2a-1},当A∩B={2,3}时,求A∪B.
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