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单选题
难度系数:

1.

如图,现有正三角形纸板150个,长方形纸板180个,正三角形的边长等于长方形的一边长,一个数学兴趣小组的同学想利用这些材料做成正三棱柱和正三棱锥模型共60个(两种模型都要求有),共有( )种加工方案.
青果学院


A:

13

B:

14

C:

15

D:

16

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