明茨博格提出战略的五个不同方面的定义，分别是（） ["计划和计谋","模式","定位","观念"]
商业银行委托其他金融机构对理财资金进行投资管理，应对其（）和信用状况等做出尽职调查，并经过高级管理层核准。 ["资质","资产","资本","负债"]
单模光纤的光源可以使用较为便宜的发光二极管。
反映项目投资决策的非贴现指标有（） ["净现值","投资回收期","投资利润率","现值指数"]
Two rams of the hydraulic gear are linked at their outer ends to （） by a crosshead and swivel block. ["the piston rod","the tiller arm","the connecting rod","the rudder"]
简述嗜子宫线虫病的症状和病理变化。
