包装线设备安装结束后，要按程序经（）试运验收合格方可投入使用。
A.单机
B.联运
C.带负荷
D.稳定性
参考答案：A, B, C
—What's the matter with you, Peter?
—________ [ ]
A. I'm going to leave here.
B. I have a bad cold.
C. I want to go shopping.
D. I'm taking an exam.
唐三彩
