Do you like____movies? Have you ever watched a movie called Mulan? Mulan is____ exciting action movie. It comes ____ an old Chinese story. The movie is about a village girl, Mulan. She____up like a boy and takes ____father's place to fight in the army. I think the actress ____ Mulan's role well. The other actors are also fantastic and they did a good____ in the movie. I like Mulan very ____. The movie ____ her love for her family, friends and country. If you plan____ watch a movie this weekend and you want to see something enjoyable, choose Mulan!

下列命题：①方程x²=x的解是x=0；②连接矩形各边中点的四边形是菱形；③如果将抛物线y=2x²向右平移1个单位，那么所得新抛物线的表达式y=（x﹣1）²；④若反比例函数与y=﹣$\frac{2}{x}$图象上有两点（$\frac{1}{2}$，y₁），（1，y₂），则y₁＜y₂，其中真命题有（　　）

企      乞

____盼      ____讨      ____图      ____怜

忠      衷

____诚      热____      ____肠      ____实

在磁感应强度为B的匀强磁场中，一个静止的放射性原子核发生了一次α衰变．放射出α粒子（ ${}_2^4\mathrm{He}$ ）在与磁场垂直的平面内做圆周运动，其轨道半径为R．以m、q分别表示α粒子的质量和电荷量．