Not until we saw the manager did we know that the bank ________the company for the purpose of reducing its borrowings.
A:took part in
B:caused damage to
C:put pressure on
D:drew attention to
求值:sin45°cos15°﹣cos45°sin15°
在公园的草坪上主人和小狗正在玩飞碟游戏,如下图所示.飞碟以v0=10m/s沿水平方向抛出,假设飞碟抛出后做匀速直线运动,在空中飞行的时间为t0=5s;小狗在1s内匀加速到v=10m/s,然后做匀速直线运动.当抛出飞碟的同时小狗应在离主人多远的地方向飞碟跑去,才能在飞碟刚要落地时恰好接住?(小狗与飞碟运动同向共线)