明确提出腰痛"治唯补肾为先"的医家是（） ["张仲景","朱丹溪","李东垣","张景岳","李用粹"]
易引起二重感染的药物是（） ["四环素","红霉素","青霉素G","sMZ","TMP"]
黑膏药制备工艺的关键工序是（） ["提取药料","炼油","下丹","去"火毒"","摊涂药膏"]
某男，70岁，全麻下行左肾切除术。术中失血较多，手术开始l小时后血压降至82/65mmHg，心率52次/分，颈静脉无怒张，双肺无啰音。此时可能为（）。 ["急性心衰","失血性休克","麻醉过深","血容量不足","急性心肌梗死"]
"颤证"主症是（） ["手足屈伸不利，瘛疭交替","颈项强直，手足挛急","半身不遂，口眼歪斜","头摇肢颤，不能自制","四肢抽搐，角弓反张"]
简述公路养护的质量要求
