单选题:下列关于原子和原子核的说法正确的是A.β衰变现象说明电子式原子核的组成部门B.玻尔理论的假设之一是原子能量的量子化C.放 题目分类:理综 题目类型:单选题 查看权限:VIP 题目内容: 下列关于原子和原子核的说法正确的是A.β衰变现象说明电子式原子核的组成部门B.玻尔理论的假设之一是原子能量的量子化C.放射性元素的半衰期随温度的升高而变短D.比结合能越小表示原子核中的核子结合得越牢固 参考答案: 答案解析:
Which sentence in the text is closest in meaning to the foll Which sentence in the text is closest in meaning to the following one?By having 分类:理综 题型:单选题 查看答案
DBatteries can power anything from small sensors to large sy DBatteries can power anything from small sensors to large systems. While scienti 分类:理综 题型:单选题 查看答案
根据本文提供的信息。下列推断不合理的一项是 根据本文提供的信息。下列推断不合理的一项是A.虽然生态道德教育在我国起步较晚,但是可以预见这门新兴学科一定会引起来赵多的有识之的重视,并在社会生活中产生实际效益 分类:理综 题型:单选题 查看答案
Helping others is a habit, _______ you can learn even at an Helping others is a habit, _______ you can learn even at an early age.A.it B.tha 分类:理综 题型:单选题 查看答案
If we sit near _______ front of the bus, we’ll have _______ If we sit near _______ front of the bus, we’ll have _______ better view.A.不填;the 分类:理综 题型:单选题 查看答案