话费管家业务两个业务可选包不能同时开通，每次更改后立即执行新的提醒方式。（）
参考答案：错
_________ for the free tickets, I would not have gone to the films so often.
A．If it is not
B．Were it not
C．Had it not been
D．If they were not
段修时，橡胶、橡塑防尘板全部更新。
