题目内容：
He was very happy to hear from his old friend.
参考答案：
答案解析：
选择题：He was very happy to hear from his old friend.
- 题目分类： 大学英语B级
- 题目类型：选择题
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Do you think you can do it by yourself?
Do you think you can do it by yourself?
PC机CPU中的MMX指的是（）。A．这种CPU的系列号B．CPU指令的多媒体扩展指令C．CPU中增加了一个叫MMX的控制器D．CPU增加了
PC机CPU中的MMX指的是（）。A．这种CPU的系列号B．CPU指令的多媒体扩展指令C．CPU中增加了一个叫MMX的控制器D．CPU增加了一个MMX指令
It was not until last night that I noticed this matter.
It was not until last night that I noticed this matter.
下面哪项属于信息资源作为经济资源具有的一般特性？（）A．时效性B．不同一性C．作为生产要素的人类需求性D．驾驭性
下面哪项属于信息资源作为经济资源具有的一般特性？（）A．时效性B．不同一性C．作为生产要素的人类需求性D．驾驭性
My roommate, Tom, is also a graduate student like me.
My roommate, Tom, is also a graduate student like me.