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共找到 43147 与I 相关的结果，耗时3 ms
一直数列an的前n项和为Sn=10n-n^2,球数列{
I
an
I
}的通项公式,求{
I
an
I
}前n项和Hn?
数学
My brother and
I
are both of middle height.请问为什么不说 my brother and i are both in middle heigMy brother and
I
are both of middle height,
英语
ut our father
How long have you been collecting shells?,A,After
I
left school.B,Before
I
moved here.C,When
I
went to the beach,D,Since
I
was ten yea
英语
s old.这道题应该选D,
Here is a small talk.A;You're new here,aren't you?B;Yes,
I
am.My name's Bill.You're Tony,aren't you?A;That's right.What do you think of
英语
the school?B;I
I
`m afraid
I
don`t have enough money for the car (同义句转化）
I
`m afraid
I
__ __ the car
英语
i have a cat and i want to take good care of her.i have a cat and i want to— — — —.同意句转换
英语
Do you have a TV set?yes ------- 英语选择-Do you have a TV set?yes --------A.
I
haveB.
I
have oneC.
I
have it选哪一个?为什么?我也知道yes
I
do是最正确了，可答案里没
英语
根据下列方程式，有关物质的还原性依次减弱的顺序是（ ）①
I
2+SO2+2H2O=H2SO4+2H
I
；②2FeCl2+Cl2=2FeCl3；③2FeCl3+2H
I
=2FeCl2+2HCl+
I
2.A.
I
-＞Fe2+＞Cl-＞SO2B. Cl-＞Fe2+＞SO2＞
I
-C
其他
Fe2+＞I-＞Cl-＞S
这道题我做对了吗? Never ( ) such an interesting book这道题我做对了吗? Never ( ) such an interesting booka.
I
have readb.
I
readc.have
I
read d.do
其他
read我选的是c,对了吗
I
borrowed the book three weeks ago.同义句转换
I
_ _ the book since three weeks ago.
I
borrowed the book three weeks ago.同义句转换
I
_ _ the boo
英语
since three w
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