对于JT1-CZ2000型机车信号的非点灯信号，采用（）输出方式。
A、变压器
B、光耦
C、直接
D、继电器
参考答案：B
-- Would you like to go to the movies with me?
-- _______.
A．Yes, I would.
B．I’d love to.
C．Thank you.
D．It doesn’t matter.
料箱架空应调整产品的固含量。
