题目：
一个圆锥形稻谷堆，底面半径是1米，高3米，每立方米稻谷约重600千克，这堆稻谷重多少千克？
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0512/a7967f9bf9698b1e36e04056a0611529.html
下面是错误答案，用来干扰机器的。
（1）父母有抚养、教育和保护未成年子女的义务，子女有赡养扶助。 （2）对母亲的挚爱之心。
一个圆锥形稻谷堆，底面半径是1米，高3米，每立方米稻谷约重600千克，这堆稻谷重
来源：www.tikuol.com
题型：解答题
试题推荐
题型：单项选择题
人的形象是作为一种自由创造的主体而存在是在哪个时期（）。
A、封建社会
B、原始社会
C、资本主义社会
D、奴隶社会
题型：填空题
升降机以速度v=4.9m/s匀速竖直上升，升降机内的天花板上有一个螺丝帽突然松脱，脱离天花板，已知升降机天花板到其地板的高度为h=14.7m．那么螺丝帽到升降机地板所需时间为______秒．
题型：完形填空
There is one showing love．and there's another not responding in time．During lifetime, however, it turns out to be a regret and we always think of making it up when it's gone． A father sat at his desk staring over his monthly bills 21 his young son rushed in and 22 ．"Dad．because this is your birthday and you're 55 years old, I'm going to give you 55 23 ．one for each year!" When the boy started 24 his agreement, the father exclaimed, "Oh．Andrew, don't do it now; I'm too 25 !" The youngster immediately 26 silent as tears welled up in his big blue eyes．27 the father said, "You can finish later．" The boy said nothing but quietly 28 ,disappointment written 29 his face．That evening the father said, "Come and finish the 30 kisses now．Andrew!" But the boy didn't respond． Unfortunately, a few days later after this incident, the boy had an 31 and was drowned．His 32 father wrote．"If only I 33 tell him how much I regret my thoughtless 34 ,and could be assured that he knows how much my heart is 35 ．" Love is a two-way street．Any loving act must be warmly accepted 36 it will be taken as rejection and can 37 a scar．If we are too busy to give and 38 love, we are too busy! Nothing is more important than 39 with love to the cry for love from those who are near and precious to us, because there may be no 40 at all as in the case of the little boy．
|
题型：选择题
| 如图所示，在x轴上方存在着垂直于纸面向里、磁感应强度为B的匀强磁场，一个不计重力的带电粒子从坐标原点O处以速度v进入磁场，粒子进人磁场时的速度方向垂直于磁场且与x轴正方向成120°角，若粒子穿过y轴正半轴后在磁场中到x轴的最大距离为a，则该粒子的比荷和所带电荷的正负是（ ） A． B． C． D．  |
，正电荷
，正电荷
，负电荷
，负电荷题型：单项选择题
下列选项中，( )是对确定出口加工区和保税区的加工企业内销产品的完税价格正确的表述。
A．保税区的加工业企业内销的制成品里，无论是否含有从境内采购的料件，都按制成品全额征税
B．对于保税区的加工企业内销制成品，无论制成品是否含有从境外采购的料件，都以制成品申报内销时的价格估定
C．出口加工区的加工企业内销的制成品里，若含有从境内采购的料件，则要按相应比例给予免税
D．对于出口加工区内的加工企业内销的制成品，以制成品申报内销时的价格估定
