单选题
The passage probably continues with a discussion of ______.
A、
the reasons craters are difficult to study
B、
the different shapes
C、
some features of large craters
D、
some difference in the ways small and large craters were formed
【正确答案】
C
【答案解析】
推理题。由文章第三段最后一句“The complexity of shape increases for larger craters．”可知，下文将谈到大型弹坑的特点。因此，C选项为正确答案。
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