1.单选题- (共10题)

A.4m厘米 | B.4n厘米 | C.2(m+n)厘米 | D.4(m-n)厘米 |

A.4mcm | B.4ncm | C.2(m+n)cm | D.4(m−n)cm |
2.选择题- (共3题)
阅读短文,在横线上写出孩子们毛衣的颜色。
Kate, Jim, Rose and Bill put their sweaters on the table. The sweaters are white,blue, red and black. We know the boys' sweaters aren't red and the girls' sweaters aren't black. What color is Kate's sweater? I don't know. But I know it is not blue. Bill says, “My sweater is white”. Do you know what colors their sweaters are?
阅读短文,在横线上写出孩子们毛衣的颜色。
Kate, Jim, Rose and Bill put their sweaters on the table. The sweaters are white,blue, red and black. We know the boys' sweaters aren't red and the girls' sweaters aren't black. What color is Kate's sweater? I don't know. But I know it is not blue. Bill says, “My sweater is white”. Do you know what colors their sweaters are?
阅读短文,在横线上写出孩子们毛衣的颜色。
Kate, Jim, Rose and Bill put their sweaters on the table. The sweaters are white,blue, red and black. We know the boys' sweaters aren't red and the girls' sweaters aren't black. What color is Kate's sweater? I don't know. But I know it is not blue. Bill says, “My sweater is white”. Do you know what colors their sweaters are?
3.填空题- (共6题)
4.解答题- (共8题)
(1)由以上式子可知:a⊙b= ;
(2)若a⊙(-2b)=4,请计算(a-b)⊙(2a+b)的值;
(3)若[x⊙(-2)] ⊙ [(-x)⊙2]=6,求x的值.







(1)直接写出


(2)猜想是否存在某幅图中“

(3)求出


(1)若该户居民8月份用水8吨,则该用户8月应交水费 元;若该户居民9月份应交水费26元,则该用户9月份用水量 吨;
(2)若该户居民10月份应交水费30元,求该用户10月份用水量;
(3)若该户居民11月、12月共用水18吨,共交水费52元,求11月、12月各应交水费多少元?

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【1】题量占比
单选题:(10道)
选择题:(3道)
填空题:(6道)
解答题:(8道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:2
5星难题:0
6星难题:13
7星难题:0
8星难题:7
9星难题:2