目前水的软化处理（）等方法。
A、药剂软化法和沉淀软化法
B、药剂软化法和离子交换软化法
C、加热和药剂软化法
D、蒸馏和离子软化法
参考答案：B
The professor kept telling us that the future _____ to the well-educated and I kept wondering
where I _____ of it.
A．would belong; heard
B．belonged; had heard
C．was belonged; heard
D．was belonging; had heard
急救医疗站各种类型的救护车在数量上应如何配置？
