Our school has a sports meeting _______October l0th. [ ]
A. at
B. on
C. in
D. for
答案:B
---You are so lucky.
---What do you mean ____that?
A.for
B.in
C.of
D.by
下列关于能源的说法中正确的是 [ ]
A.二次能源是指可重复利用的能源
B.新能源是指新开采的能源
C.一次能源是直接来自自然界的能源
D.石油是二次能源