宇宙生成论也叫（）
A、早期自然哲学
B、中期希腊哲学
C、晚期希腊哲学
D、前苏格拉底哲学
参考答案：A
— Do you think English is more interesting than Maths, Tom?
— _____. But I'm not good at it. Can you help me? [ ]
A. Yes, I think so
B. No, I don't think so.
C. No, I'm not sure.
特性要因图的种类有（）种。
A.1
B.2
C.3
D.4
