构造原理揭示的电子排布能级顺序，实质是各能级能量高低的顺序，若以E表示某能级的能量，下列能量高低顺序中正确的是
| A．E(3s)＞E(2s)＞E(1s) | B．E(3s)＞E(3p)＞E(3d) |
| C．E(4f)＞E(4s)＞E(3d) | D．E(5s)＞E(4s)＞E(4f) |
相关试题
All the dishes in this menu, ______ otherwise stated, will serve two to three people. 
| A．as | B．if | C．though | D．unless |
The children loved their day trip, and they enjoyed the horse ride ______.
| A．most | B．more | C．less | D．little |
Progress______ so far very good and we are sure that the work will be finished on time.
| A．was | B．had been | C．has been | D．will be |
Charles was alone at home, with_______ looking after him.
| A．someone | B．anyone | C．not one | D．no one |
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