李先生，因下肢挤压伤致血清钾升高，出现心动过缓、心律不齐。应选用的药物是（） ["毛花苷丙（西地兰）","普萘洛尔（心得安）","利多卡因","5％碳酸氢钠","10％葡萄糖酸钙"]
What is the correct command to display the current working directory?（） [" echo $PWD"," echo $pwd"," echo $CWD"," echo $cwd"]
工程实际进度与施工进度计划不符时，承包人应按监理机构的指示（）d内提出一份修订进度计划报送监理机构审批。 ["7","14","15","20"]
Given: Which code, inserted at line 16, will cause a java.lang.ClassCastException?（） ["Alpha a = x;","Foo f = (Delta)x;","Foo f = (Alpha)x;","Beta b = (Beta)(Alpha)x"]
生物生理的人口容量
小企业筹集资金遵循什么原则？
