热心的同志们填空:使分式-1/(1-x)的值为负数的x的值为___.1、若x+y+z≠0,(2x+y)/z=(2y+z)
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热心的同志们
填空:使分式-1/(1-x)的值为负数的x的值为___.
1、若x+y+z≠0,(2x+y)/z=(2y+z)/x=(2z+x)/y=k,则k的值为()
A.4 B.3 C.1 D.-3
2、横坐标、纵坐标都是整数的点叫做整点,函数y=(6x+3)/(2x-1)的图象上整点的个数是()
A.3个 B.4个 C.6个 D.8个
3、下列说法正确的是()
A.对角线相等的四边形是平行四边形
B.对角线互相垂直平分的四边形是平行四边形
C.一组对边平行,另一组对边相等的四边形是平行四边形
D.一条对角线平分另一条对角线的四边形是平行四边形
4、菱形ABCD中,AE⊥BC于E,AF⊥CD于F,且E、F分别为BC、CD的中点,那么∠EAF=()
A.75° B.60° C.30° D.45°
英语:
根据句意及首字母提示完成单词
1、L_ is the most important things in our life.With it you can get on well with others.
2、I want to f_ the word in the blank,but I do not know wrong or right.
3、Jimmy kept a p_ in his home.He thinks it can help to make air clean.
4、I do not know what h_ to him.He has been away for five days.
5、Everyone is r_ for the experiment.
6、There are many k_ of theories about the UFO.
所以我说是热心的同志吗
填空:使分式-1/(1-x)的值为负数的x的值为___.
1、若x+y+z≠0,(2x+y)/z=(2y+z)/x=(2z+x)/y=k,则k的值为()
A.4 B.3 C.1 D.-3
2、横坐标、纵坐标都是整数的点叫做整点,函数y=(6x+3)/(2x-1)的图象上整点的个数是()
A.3个 B.4个 C.6个 D.8个
3、下列说法正确的是()
A.对角线相等的四边形是平行四边形
B.对角线互相垂直平分的四边形是平行四边形
C.一组对边平行,另一组对边相等的四边形是平行四边形
D.一条对角线平分另一条对角线的四边形是平行四边形
4、菱形ABCD中,AE⊥BC于E,AF⊥CD于F,且E、F分别为BC、CD的中点,那么∠EAF=()
A.75° B.60° C.30° D.45°
英语:
根据句意及首字母提示完成单词
1、L_ is the most important things in our life.With it you can get on well with others.
2、I want to f_ the word in the blank,but I do not know wrong or right.
3、Jimmy kept a p_ in his home.He thinks it can help to make air clean.
4、I do not know what h_ to him.He has been away for five days.
5、Everyone is r_ for the experiment.
6、There are many k_ of theories about the UFO.
所以我说是热心的同志吗
数学1.x
热心的同志们填空:使分式-1/(1-x)的值为负数的x的值为___.1、若x+y+z≠0,(2x+y)/z=(2y+z)
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