问题
单项选择题
关于原子能级的相关叙述，错误的是
A．电子在各个轨道上具有的能量是连续的
B．原子能级，以电子伏特表示
C．结合力与原子序数有关
D．移走轨道电子所需的最小能量称结合能
E．原子处于能量最低状态时称基态
答案
参考答案：A
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关于原子能级的相关叙述，错误的是
A．电子在各个轨道上具有的能量是连续的
B．原子能级，以电子伏特表示
C．结合力与原子序数有关
D．移走轨道电子所需的最小能量称结合能
E．原子处于能量最低状态时称基态
参考答案：A
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| When I was three years old just before my sister was born, my mom asked me what we should name the new baby. I said, "Let's call 1 Gravy (肉汁)!" You know, we pour gravy over meat and it tastes good! My parents found my 2 interesting, but named the new baby Caroline, instead. Having a sister 3 my life. When my sister and I played together, we 4 got into fights and got angry with each other if we did 5 wrong. It sometimes drove our parents crazy. 6 at the same time, we learned to share our things and to forgive (原谅) each other when we got 7 . In North America, there are many kinds of families, but 8 families have a boy and a girl. Of course, some have three or more. In China, most children 9 have brothers or sisters, and they have to learn those things in other ways, which is more 10 . When I 11 away to university, my sister 12 me she wished I still lived at 13 . She wasn't used to getting all the attention from my parents. But Chinese children get all the attention for all their life! Some middle school 14 in China wish they had a brother or sister. If you are one of them, I 15 a good idea for you. Treat your friends and classmates as your brothers and sisters! | ||||
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