You are developing an application that dynamically loads assemblies from an application directory. You need to write a code segment that loads an assembly named Company1.dll into the current application domain. Which code segment should you use？（） ["A","B","C","D"]
热轧带肋钢筋弯曲试验用试样数量为（）。 ["1个","2个","3个","4个"]
围岩
进货检查记录和销售记录应当保存至医疗器械有效期后（）年，无有效期的，不得少于5年。 ["1年","2年","3年","5年"]
沉箱工法分为（）。 ["A.开口沉箱 ","B.钻孔沉箱 ","C.降水沉箱 ","D.气压沉箱 ","E.挤土沉箱"]
循环累积因果机制
