[单选题]___________[A] life[B] existence[C] survival[D] maintenance
[单选题][A] existence [B] store [C] reality [D] mind
[单选题]55 A Adventure B Beauty C Trust D Life
[名词解释] survival analysis
[单选题]Survival Kit指的是()。A . 急救箱B . 应急医疗箱C . 卫生防疫包D . 救生包
[单选题]The survival of the civilization as we know is_________ threat.A. withinB. underC. towardD. upon
[单选题]Thesurvivalofcivilizationasweknowitis_____threat.(A)within(C)towards(B)under(D)upon
[单选题]Thesurvivalofcivilizationasweknowitis_____threat.(A)within(C)towards(B)under(D)upon
[名词解释] 生存概率(survival probability)
[名词解释] survival factors (存活因子)