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is the special kind of food for the Spring Festival in China.
A. Chicken B. Dumpling C. Fish
已知-a<b<-c<0<-d,且|d|<|c|,a,b,c,d,0这五个数由大到小用“>”依次排列为()
A.a>b>c>0>dB.a>0>d>c>bC.a>c>0>d>bD.a>d>c>0>b
He had meant to tour the deserted temple for ______ fun but he didn’t find ______ fun for doing that.
A. /;/B. /; theC. the; theD. a; the
解方程(1)11-3x-32=23x-1(2)xx+2-x+2x-2=8x2-4.
计算(1)(-2ab2)3(2)(3a2b-ab2)÷12ab(3)327-(3.14-π)0(4)|2-3|+22.
当x=______时,代数式3(x+2)与2x+7的值相等.
若x-1x=1,则x2-3x+1的值为______.
一枝铅笔原价为a元,若降价10%,则现在买一枝铅笔应付______元.
减缓温室气体排放是2009年哥本哈根气候变化会议的议题。下列反应不产生温室气体的是
A.用纯碱制玻璃B.用煤炭作燃料C.用铁矿石炼铁D.用氨制碳酸铵
多项式4xy2-3xy3+12中次数最高项的次数和系数分别为()
A.2和4B.3和4C.3和3D.4和-3
借助数轴,求出下列不等式组的解集,然后看能总结出什么规律:(1)x>3x>1(2)x<3x<1(3)x>1x<3(4)x>3x<1
在下列方程中,其中二元一次方程的个数是()①4x+5=1;②3x-2y=1;③3x+y3=1;④xy+y=14
A.1B.2C.3D.4
如果(m+2)x|m|﹣1+8=0是一元一次方程,则m=().
下列计算正确的是()
A.(x+y)(x-y)=x2-y2B.(-x+2y)2=-x2-4xy+4y2C.(2x-12y)2=4x2-xy+14y2D.(-3x-2y)2=9x2-12xy+4y2
2008年春季学期以来,我省城乡义务教育阶段学生全部得到了免费提供的课本.今年全省义务教育阶段720万名学生,免除学杂费和课本费后家长共减负29亿元.用科学记数法表示29亿元的结果是______元.
Police are now searching for a woman who is reported to ____ since the flood hit the area last Friday.
A. have been missingB. have got lostC. be missingD. get lost
太阳的半径约为696000km,把696000这个数用科学记数法表示为
A.6.96×103B.69.6×105C.6.96×105D.6.96×106
最小的整数是[]
A.1B.0C.﹣1D.不存在
45________.
A.worksenoughB.enoughworksC.workenoughD.enoughwork
_____ scores of times ,but hestill couldn’t understand it .A Having explainedB Having been explainedC Though it was explainedD Itwas explained
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