电子的衍射实验证实了 ① 。
参考答案:①电子运动具有波动性
下列说法正确的是( )
A.两条不相交的线段叫平行线
B.过一点有且只有一条直线与已知直线平行
C.线段与直线不平行就相交
D.与同一条直线相交的两条直线有可能平行
—Liu Qian is a magician from Taiwan. For the CCTV Spring Festival Gala (春晚)
he ______ two magic shows.
—I know they were very ______. [ ]
A. puts on; success
B. puts on; successful
C. put on; successfully
D. put on; successful