结核菌对外界理化因素的抵抗力较强,在阴湿环境下能生存______以上,但在阳光下暴晒_____,紫外线照射________,即可被杀死。
参考答案:5个月;2小时;10~20分钟
He went back to the hall to try his ________ at finding his lost gold watch,but never found it. [ ]
A. fortune
B. bargain
C. result
D. competence