题目内容：
[ 英译汉 ]The friend saw everything but did not say a single word.
参考答案：
选择题：[ 英译汉 ]The friend saw everything but did not say a single word.
- 题目分类： 大学英语B级
- 题目类型：选择题
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[ 英译汉 ]Trees need water to grow.
[ 英译汉 ]Trees need water to grow.
[阅读理解] It has been reported that in colleges across the United States, t...
[阅读理解] It has been reported that in colleges across the United States, t...
[交际用语] I'd like to book a room, please.- _________
[交际用语] I'd like to book a room, please.- _________
线性分组码（63，51）的编码效率为（），卷积码（2，1，7）的编码效率为（）。
线性分组码（63，51）的编码效率为（），卷积码（2，1，7）的编码效率为（）。
[交际用语]- Thanks, you saved my life!- _________
[交际用语]- Thanks, you saved my life!- _________