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【简答题】
a=2010x+2010,b=2010x+2011,c=2010x+2012,则a 2 +b 2 +c 2 -ab-bc-ca=______.
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举一反三
【单选题】假设其他条件不变,空气湿度大
A.
空气密度大,起飞滑跑距离长
B.
空气密度小,起飞滑跑距离长
C.
空气密度大,起飞滑跑距离短
D.
空气密度小,起飞滑跑距离短
【单选题】假设其他条件不变,空气湿度大
A.
空气密度大,起飞滑跑距离长
B.
空气密度小,起飞滑跑距离长
C.
空气密度大,起飞滑跑距离短
【单选题】Tom is a student and he works hard, and_______________.
A.
so I am.
B.
so do I.
C.
so it is the same with me.
D.
so I do.
【多选题】Tom get excellent scores on exam,he has extensive knowledge and is a hard-working student. So Tom is a . ( )
A.
student
B.
top student
C.
excellent student
D.
good student
【单选题】—Tom was a good student and worked very hard.
A.
so was
B.
so did
C.
so it was with
D.
so it is with
【单选题】( )往往以崇山峻岭、山麓或峡谷地带为地形基础,伴以茂林修竹等植被景观,构成半封闭式的自然空间。
A.
奥妙美
B.
旷远美
C.
幽静美
D.
秀丽美
【单选题】Tom is a student and studies hard. ________ John.
A.
So does
B.
So is
C.
So it is with
D.
So do
【简答题】DNA 的中文名称为
【简答题】生物细胞中DNA的中文名称是什么?
【简答题】阅读短文,根据短文内容和已给出的首字母,在空白处填入适当的单词。 Tom is a student of Hongqi Middle school. He u______小题1:to be interested in comics about insects. He often borrowed some because he couldn’t a_______小题2:to buy too man...
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