单选题
Spirit failed to talk to its controllers probably because of______.
A、
its failure to move down the platform
B、
its doing too little chemical analysis
C、
the damage done to its components
D、
the excess files in its memory chips
【正确答案】
D
【答案解析】
这是一道细节题。依据第六段可知，勇气号出现故障是因为芯片中多余文件造成，故答案为D。
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