单选题 It is implied in the text that the contracts would fail to inform the public of NASA' s new vision if

A、 the new moonships will be launched together.
B、 NASA' s Crew Exploration Vehicle could not be manipulated with the help of ground-based equipment.
C、 the agency' s plans are not carried out faithfully.
D、 NASA' s Crew Exploration Vehicle could not be employed together with the rest parts of the plan.

【正确答案】 D

【答案解析】[考点解析] 本题是一道细节题，该题的答案信息在第二段的尾句。该句的含义是：“……由于探测飞行器(CEV)必需能够和登月梦想的其他组成部分一起使用，所以合同(contracts)提供有关美国航空和航天局计划探测月球和火星的细节”。根据本句话可以反推出本题的正确答案是D。