服务规范化的内容主要体现了员工服务技能和加油站整体服务的规范。
参考答案：对
The road conditions there were very good, _______ was more than we could expect.
A．it
B．what
C．which
D．that
为维护人体健康和发育的最低需要，居室内每天日照时间应不少于（）小时。
