1编号:2731题型:单选题测试正确率:0%

The people's Republic of China was founded ___ 1949.

2编号:2730题型:单选题测试正确率:0%

We had our breakfast ___ a quarter ___ seven.

3编号:2729题型:单选题测试正确率:0%

My brother joined the army ___。

4编号:2728题型:单选题测试正确率:0%

- Please remember to come to my birthday party.?
- I see. I'll come ___ Saturday evening.

5编号:2727题型:单选题测试正确率:0%

“Don't______ to strangers on your way to and from school”, mother often______ to me.

6编号:2715题型:单选题测试正确率:88.85%

方程解法中括号里面应填入(     )
解:方程两边同时乘以6得12-3(3x-1)=21+2(x-14)
去括号得(                        )
移项、合并同类项得-11x=-22
系数化为1得x=2

7编号:2714题型:单选题测试正确率:61.24%

的计算结果正确的是(     )

8编号:2726题型:单选题测试正确率:47.77%

已知a<0<c,ab>0,|b|>|c|>|a|,化简|b|-|a+b|+|c-a|+|b-c|为(     )

9编号:2725题型:单选题测试正确率:58.92%

有理数a、b在数轴上的位置如图所示,则|a-b|的化简结果正确的是(      ).

10编号:2724题型:单选题测试正确率:40.0%

在△ABC中,∠ABC=90°,AB=BC=4,在AC上找点M,在AB上找点N,使得BM+MN+NC最短,则最短值为().