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问题 判断题

企业应当在利润表中列示每股收益信息。( )

答案

参考答案：错

解析： 普通股或潜在普通股已公开交易的企业，以及正处于公开发行普通股或潜在普通股过程中的企业，应当在利润表中列示每股收益信息。

改错题

短文改错

     An American and a Frenchman decided to cross the sea between France and England  in the

balloon in 1784. High over the water, they discover a hole in the balloon. The hole became bigger

and bigger. The air keeps the balloon up were escaping quickly and the balloon was coming up.

The two men threw all their equipment into the water to make the balloon light. It started to rise

higher again. So it was still too close to the water. Finally, the men threw away most of his clothes

to save themselves. The crowd waiting for to greet them in England was very surprised see this when

the balloon landed on front of them.

                                                                                                                                                             

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问答题

如图所示，中心带孔的平行板电容器水平放置，板长L=0.4m，板间距离为d=0.6m，两板间电压U=6V，使板间产生匀强电场（电场只存在于两板间）．一带电微粒在正对小孔上方距小孔h=0.8m高处由静止释放，经t=0.55s从下极板小孔处穿出．（不计空气阻力，g=10m/s2）求：

（1）微粒进入上极板小孔时的速度及在两极板间运动的时间；

（2）若在两极板间再加一垂直纸面的匀强磁场，其他条件不变，微粒仍从原来位置由静止释放，为使微粒从两极板右侧偏出，求所加磁场的磁感应强度的方向及大小应满足的条件．
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