岩石物理破碎
参考答案:
施加物理能进行碎岩的方法。
-What do you usually do on Sundays?
-We _______ at the guitar group. [ ]
A. enjoy
B. have good times
C. enjoy ourselves
D. like ourselves
要实施文雅教育必须具备两个条件:一是(),二是有()。
A.学习的乐趣
B.闲暇时间
C.自由学科