磁性无杆气缸,适用于() ["长行程、轻载","短行程、重载","长行程、重载","短行程、轻载"]
研究临床合理、有效、安全用药的学科是() ["工业药剂学","物理药剂学","生物药剂学","临床药学","药物动力学"]
治疗小儿胆道蛔虫症,应首选的方剂是()。 ["使君子散","乌梅丸","肥儿丸","资生健脾丸","驱蛔承气汤"]
有关切道斜度的描述错误的是() ["与覆(牙合)成正变关系","与覆(牙合)成反变关系","与覆盖成反变关系","大小与覆(牙合)有关","大小与覆盖有关"]
关于人体实验的国际性著名文件是() ["《夏威夷宣言》","《赫尔辛基宣言》","《希波克拉底誓言》","《纽伦堡法典》","《悉尼宣言》"]
氨在一个大气压下的沸点为()、其化学分子式为()、代号为、适用温度范围为()之间,一般规定氨液中含水量不应超过()。