A:6
B:9
C:12
D:15
说《十二铜表法》是平民的胜利,依据是( )
如图,小明从点O出发,前进5m后向右转15°,再前进5m后又向右转15°,…这样一直下去,直到他第一次回到出发点O为止,他所走的路径构成了一个多边形.
I usually get up ______ 7:30 a.m.______ Sundays. I'm very happy.
—The air pollution is terrible.
— It will be worse we take action to protect the environment.