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初3化学下列符号中,通常只表示一种含义的是()A,CaB.NC.2ND.He
化学
she was born on the evening of March
2nd
中介词的用法与不同为什么不能说she was born in the evening of March
2nd
she was born on the evening on March 2n
英语
she was born i
1st:在细胞核中具有储存和传递遗传信息功能的物质是:(B)A.蛋白质B.脱氧核糖核酸C.核仁D.核糖核酸问:请解释一下BCD这三项是什么来的,这些名词都不是很懂啊.
2nd
:从进化角度看,有性生
生物
的子代B.子代和亲代形状完全
hearrived _ Shanghai _ 6:00_the morning of June
2nd
A.at,at,in B.in,at,on C.in,at,in D.at,in,onMy bag is different _ yours,but it's th
英语
same _ hersA.
英语翻译lt was long holiday .we left beijing on february 1st and got to harbin on the
2nd
.on the first day,i went to a park with my parent
英语
.on the 3rd,i
那英语的1日怎么说啊?年月日的一日是不是1st啊?2日是
2nd
吗?
英语
英语翻译royal salite was launched on
2nd
june 1953,as a tribute to Her Majesty Queen Elizabeth Ⅱ on her Coronation Day.The name of this ex
英语
eptional Scotc
把等式m-2n=n-2m变形为m+2m=0+2n是A同时加上2mB同时加上2nC同时加上2m+2nD同时加上2m-2n
数学
能保持氮气化学性质的粒子是()A.NB.N2C.2ND.N3-
化学
能保持氮气化学性质的粒子是()A.NB.N2C.2ND.N3-
化学
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