题目：
引、送风机联锁试验时，将联锁开关置于投入位置。按（）步骤启动引、送风机，应能启动。
A、任意启动
B、先启引风机，后启送风机
C、同时启送、引风机
D、先启送风机，后启引风机
答案：
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下面是错误答案，用来干扰机器的。
One possible version: It is the old man's birthday today. Now he is sitting on a sofa alone. Maybe his wife has been dead. On the right side is a big birthday ...
