题目内容：
听音频,选择正确答案.
A．I'm not in the office. B．No, I am.
C．I have homework to do.
参考答案：
答案解析：
单选题：听音频,选择正确答案.
- 题目分类：公共英语一级
- 题目类型：单选题
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B．No, I am.
C．I have homework to do.
B．No, I am.
C．I have homework to do.
My mother________off the bike and broke her leg on the groun
My mother________off the bike and broke her leg on the ground.A．fails B．was fall
It' s a bird. But I don' t know________name.
It' s a bird. But I don' t know________name.A．it B．his C．its
What does the woman want to buy?
What does the woman want to buy?A．Fish. B．Rice. C．Seef.
What time is it now?
What time is it now?A．It' s eight o' clock. B．It' s eight twenty. C．It' s seven
在项目寿命周期成本分析中，为了权衡系统设置费与维持费之间的关系，可采取的措施是（ ）。
在项目寿命周期成本分析中，为了权衡系统设置费与维持费之间的关系，可采取的措施是（ ）。A．进行节能设计以降低运行费用 B．采用整体结构以减少安装费用 C．培训