A:in commo
B:in common with
C:out of the commo
D:by commo
(2015•广东佛山)Meals are very boring. He ________ has the same thing to eat every day.
科学家初步估计月球土壤中至少有100万吨“氦3”(即23He),它是热核聚变的重要原料如果月球开发成功,将为地球带来取之不尽的能源.已知氨3核与氘核发生聚变反应有质子流产生
____