题目：
Such legal entities provide the means for international cooperation and support of macroprojects related to the moon and mars that encourage global private sector participation.
A. existences
B. vitalities
C. persistences
D. complicities
答案：
参考答案：A
解析： 名词辨析
entities实体；A．existences存在，存在物；B．vitalities活力，生命力；C．persistences坚持，持续；D．complicities 同谋，共犯；因此A为答案。
