以下( )不属于专门针对人的安全管理理论。A．马斯洛的需要层次理论 B．赫兹伯格的 发布时间：2017-06-20 23:40 │ 来源：www.tikuol.com 题型：单项选择题 问题： 以下( )不属于专门针对人的安全管理理论。A．马斯洛的需要层次理论B．赫兹伯格的双因素理论C．海因里希的事故致因理论D．斯金纳的强化理论
题型：单项选择题 根据文章内容完成框内短文。 Our town has a big zoo with a lot of animals in it. There are two old lions. They eat lots of meat every day. There are also two big elephants and a little one. They are very kind. They eat much grass every day. There are a lot of' monkeys in the zoo, too. Children like them and they like children too. They like children because they sometimes give them bread and bananas. They like bananas very much. In our zoo there are three black bears and four white ones. They stand on their back legs, hold up their arms and play with each other like small children .They love candy very much. There are __1__ old lions, __2__ elephants, __3__ bears, and __4__ monkeys in the zoo .The __5__ like meat. The __6__ eat much grass and the monkeys like __7__ very much. The __8__ like candy, and they can hold up their arms and ask for __9__ to eat. The __10__ is a lot of fun. 查看答案
题型：单项选择题 2005年在酒泉卫星发射中心，载着两名宇航员的“神舟六号”飞船发射成功，这彰显着我国的航天技术又上了一个新台阶。设飞船在轨道上绕着地球作匀速圆周运动。则下列说法正确的是（ ）A．宇航员处于完全失重状态，所受的重力为零B．在轨道上运动的速度大小v满足：v＞11.2km/sC．在轨道上运动的速度大小v满足：v＞7.9km/sD．“神舟六号”飞船若要返回地面，宇航员在圆轨道上应让飞船减速 查看答案