【单选题】为了探讨不同训练方法对提高耐力素质的效果,现将48名基本条件相似的男生随机分成3组,进行不同方法的训练,用1500米成绩反映训练效果。请问指标是( )。
【单选题】Which obstacle was NOT mentioned in the conversation?
A.
The spending power of the ordinary people might not be strong enough.
B.
The laws in Central and South America might not permit them to do business there.
C.
The selling strategies might be different from what they're applying now.
【单选题】为了探讨不同训练方法对提高耐力素质的效果,现将48名基本条件相似的18岁男生随机分成3组,进行不同方法的训练,用1500米成绩反映训练效果。请问水平数是( )。
【单选题】Which of the following is NOT mentioned as an obstacle of humanitarian assistance in Somalia?
C.
Operational challenge.