下载APP
举一反三
【多选题】关于围护结构权衡判断的描述正确的有( )
A.
使用时对围护结构热工参数没有任何前提条件限制
B.
使用时对围护结构热工参数有前提条件限制
C.
以模拟计算的建筑能耗值为判断依据
D.
是实际产生的建筑能耗值为判断依据
【单选题】The topic of cloning has been a politically and ethically controversial one since its very beginning. While the moral and philosophical aspects of the issues are entirely up to the interpretation of t...
A.
argue in favor of one side on a particularly controversial topic of cloning.
B.
display both sides’ arguments on another contentious issue in cloning.
C.
redirect the readers’ attention to the previously raised issue of ethics in cloning.
D.
provide further relevant information to the evaluation of cloning as a preservation technique.
【单选题】甲组变异系数为3.59%,乙组变异系数为4.89%说明( )
A.
说明甲组比乙组变异程度大
B.
此时不能说明哪一组变异程度大,要经过显著性检验
C.
说明乙组比甲组变异程度大
D.
说明甲组的均数比乙组小
E.
不能说明任何问题