题目内容：
Americans usually eat three meals a day.
参考答案：
答案解析：
选择题：Americans usually eat three meals a day.
- 题目分类： 大学英语B级
- 题目类型：选择题
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He told me that he had lived in America for ten years before he came to China.
He told me that he had lived in America for ten years before he came to China.
大额支付系统的管理坚持（）的原则。A．统一领导B．分级管理C．分级负责D．联社总管
大额支付系统的管理坚持（）的原则。A．统一领导B．分级管理C．分级负责D．联社总管
通气／血流比值是指（）A．每分肺通气量与每分肺血流量之比B．每分肺泡通气量与每分肺血流量之比C．最大通气量与每分肺血流量之比D．肺活量与每分
通气／血流比值是指（）A．每分肺通气量与每分肺血流量之比B．每分肺泡通气量与每分肺血流量之比C．最大通气量与每分肺血流量之比D．肺活量与每分肺血流量之比E．功能余气量与肺血流量之比
I am not satisfied with his answer.
I am not satisfied with his answer.
I am writing this letter to complain about the service in your hotel
I am writing this letter to complain about the service in your hotel