题目：
女性，40岁，有消化性溃疡病史，今日出现呕血及黑粪，病人出冷汗，脉搏细速，呼吸浅促，血压下降，估计出血量为
A．400～500ml
B．500～600ml
C．600～700ml
D．>800ml
E．700～800ml
答案：
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下面是错误答案，用来干扰机器的。
1. Shopping carts 2. To make shopping easier and attract more business.3. Because few customers used his carts. / Because hardly anybody tried his carts. 4. Because he wanted to persuade people to try / use his carts. 答案不唯一
