单项选择题
电子轨道重叠的原则,不包括下面哪一条: A.
最大重叠 B.
有效重叠 C.
重叠的波函数符号必须相同 D.
重叠的波函数符号必须相反
点击查看答案
相关考题
-
未知题型
根据下图，回答下面问题2008年4月宏观经济预警指数约为( )A.110.7B.101.8C.123.7D.133
A.shangxuebA.cn/images/ct_ggxm_ggxdataanalysis_01526(200910)1.jpg'>
2008年4月宏观经济预警指数约为(
B.110.7
B.101.8
C.123.7 -
多项选择题
生活经验告诉我们，善于宽容，利人利已，因为 （ ）A. 宽容能使对方吸取教训，重新审视自己的行为B. 宽容能使自己远离烦恼、仇视，体验到宽容带来的心灵安宁和清静C. 宽容是一种美德，一种境界D. 有时宽容别人也会吃亏 -
未知题型
It's 8:00 am. James Butters gives 18-month-old Thomas his milk, then breakfast. After getting Thomas into his outdoor clothes, they head for the park to watch birds and play on the grass. With lunchtime drawing near, they're back home for an afternoon of drawing, playing with cars, maybe watching some children's programs.James isn't Thomas' daD.He is a nanny (保姆)—a man nanny, obviously, interestingly termed a 'manny'—specially trained and in his third nannying position. At 27, he cares for Thomas, and another boy of a similar agE.'It's much freer than an office job,' he says, 'and you're getting to see children develop and grow. You become very close to them, for surE.I don't think I'm special or better than a woman nanny; everyone has their own methoD.But I'm unusual.Friends laughed when I started studying nursery nursing. In my class, I was the only man among 70 women. Somehow, I made it,' he saiD.Although it's not yet common to find men in traditional (传统的) nannying courses, things are changing. In the United States, parents are employing young mannies, sometimes to care for babies, but more often as active role models to get junior away from the TV and the computer. From rollerblading (轮滑) friends to summer swimming mannies, these are the big brothers who are always willing to play, largely because they're paid for it.It is catching on here in Britain, too. Earlier this year, Norland nanny college welcomed its first full-time man student, 19-year-old Peter Cummins in Wales. While some families find it difficult to accept the idea of a young man in a traditional nannying role, man nannies are increasingly popular.Which of the following can be the best title for the text?A.Changes in TraditionB.A New Job for MenC.Mannies and Women NanniesD.Baby Boys and Their Mannies
A.B.
C.
D.
E.
Which
F.Changes
G.A
H.Mannies
I.Baby
