下列过程吸收能量的是[ ]
A．重核裂变
B．轻核聚变
C．原子核的α衰变时
D．原子从较低能级跃迁到较高能级
答案：D
Our English teacher _____ two daughers, we all like _____ with them.[ ]
A. have, playing
B. has, play
C. have, to play
D. has, to play
预处理方式对于嵌入式SQL的实现有什么重要意义？
