术后麻醉反应的是（） ["疼痛","发热","恶心、呕吐","呃逆","腹胀"]
实验结束后，通常采用（）清洗揉面钵中和螺旋搅拌叶片上粘附的面团。 ["温水，细纱布","稀盐酸，细毛刷","稀碱液，细毛刷","温水，钢丝球"]
室内型家用燃气快速热水器按排气方式分为（）几类。 ["自然给排气式","强制排气式","强制给排气式","自然排气式","直排式"]
测量光缆传输损耗时（）测量结果更精确 ["PMD测试仪","OTDR","光源、光功率计","光纤熔接机"]
正常儿童寰齿间距一般应小于（） ["1mm","2mm","3mm","4mm","5mm"]
著录项目标识符“；”，用于标识哪些小项目？
