挑战习题
1/5单选题
难度:

1.下列能源中,属于二次能源的是()
A 风能
B 石油
C 核能
D 电能
提示1:
5LqM5qyh6IO95rqQ5piv57uP6L+H6L2s5YyW55qE6IO95rqQ44CC5L6L5aaC77ya54Wk5aaC5p6c55u05o6l5ou/5p2l54On77yM5oiR5Lus5bCx5piv5Yip55So5LqG5LiA5qyh6IO95rqQ44CC5aaC5p6c5YWI55So54Wk5Y+R55S177yM5omA5Lqn55Sf55qE55S16IO95bCx5piv5LqM5qyh6IO95rqQ
正确答案:RA==
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