函的主送机关适用的范围包括（） ["无隶属关系的需要请求事项的主管机关","无隶属关系的需要商洽公务的机关","同一系统的需要商洽公务的同级机关","系统的直接上级机关","系统的直接下级机关"]
1631年计成所著（）一书，是我国古代最系统的园林艺术论著。 ["《园冶》","《山海记》","《池上篇》","《大业杂记》"]
针对新客户设计的FAQ，以（）为目标。 ["激发购买需求","提供技术细节","提供新产品的维修注意事项","提高用户忠诚度"]
The company in question does steady export business, （） satisfactory results in overseas markets. ["show","to show","showed","showing"]
关于分馏塔底泵抽空时的现象，下列选项正确的是（） ["出口压力下降","电机电流飙升","分馏塔液面下降","输出流量增加"]
理解力。
