题目内容：
Young people spend much of their free, waking hours on the Internet.选择一项：
对
错
参考答案：
选择题：Young people spend much of their free, waking hour
- 题目分类：国家开放大学-理工英语2
- 题目类型：选择题
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选择一项：
对
错
选择一项：
对
错
The reason _____ he was absent from class yesterda
The reason _____ he was absent from class yesterday was that he was ill and hosp
If you don.t have a separate room for your busines
If you don.t have a separate room for your business, which is the best choice fo
凡（ ）中任一项不符合标准规定时，均为废品水泥。
凡（ ）中任一项不符合标准规定时，均为废品水泥。
______ clearly communicate with and actively liste
______ clearly communicate with and actively listen to employees is essential to
砌体施工质量控制等级应分为（ ）级。
砌体施工质量控制等级应分为（ ）级。