施工水泥混凝土路面时，应先（），然后再（）。 ["浇筑水泥混凝土面板，安砌侧、平石","浇筑水泥混凝土面板，安砌侧石","安砌侧、平石，浇筑水泥混凝土面板","安砌侧石，浇筑水泥混凝土面板"]
“（m3/s）·月”为（）单位。 ["水量","时间","流量"]
用以宣泄多余水量，排放泥沙和冰凌，或为人防、检修而放空水库等，以保证坝和其他建筑物安全的建筑物，称为（） ["挡水建筑物","泄水建筑物","整治建筑物","输水建筑物"]
A global manufacturer of automobile parts wants to implement specialized voice applications to increase productivity and reduce the cost of overseas toll calls. Which Cisco solution best matches this business need?（） ["Optical network","Digital subscriber line (DSL)","Internet Protocol (IP) telephony","Wireless local-area network (WLAN)"]
腹鳍喉位
工作许可人的安全责任是什么？
