自动调节系统中起转换传递作用的物理量称为()。
参考答案：信息
制做电缆鼻子，将电缆外层钢丝铠装在电缆短节上，长度应大于（）米。
A、1米
B、0.8米
C、1.5米
— Can you describe _____it happened?
— Yes, I was riding on my bike_____ a car knocked me down from behind. [ ]
A. when; as
B. how; as
C. how; when
D. how; while
