1编号：4984题型：单选题测试正确率：73.08%
已知|x+1|+(y+2x)2=0，则xy=（ ）
2编号：4983题型：单选题测试正确率：28.31%
已知x＜0＜z，xy＞0，|y|＞|z|＞|x|，那么|x+z|+|y+z|-|x-y|的值（ ）
3编号：4982题型：单选题测试正确率：84.31%
下列说法中正确的是（ ）
4编号：4981题型：单选题测试正确率：87.08%
关于有理数，下面的说法中正确的是（ ）
5编号：4827题型：单选题测试正确率：86.8%
—Look! There are so many people in the park.—Nobody likes to stay at home Sunday morning.
6编号：4826题型：单选题测试正确率：77.07%
The university student borrowed some money his friends to start his own business.
7编号：4825题型：单选题测试正确率：59.05%
The wedding of Prince William was held in Westminster Cathedral April 29, 2011.
8编号：4824题型：单选题测试正确率：65.48%
—Your sweater looks nice. Is it made of wool?—Yes, and it’s made Shanghai.
9编号：4823题型：单选题测试正确率：59.39%
A terrible earthquake happened in Japan March, 2011.
10编号：4822题型：单选题测试正确率：88.07%
A: How do you go home every day?B: bike. It’s not far from here.
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