构造原理揭示的多电子原子的电子排布能级顾序,实质是各能级能量的高低。若以E(n1)表示某能级的能量,则以下各式中正确的是( ) A.E(3d)>E(4s)>E(3p)>E(3s) B.E(5s)>E(4f)>E(4s)>E(3d) C.E(4s)<E(3s)<E(2s)<E(1s) D.E(5s)>E(4s)>E(4f)>E(3d)
He risked ________ his job to see me off.
[ ]
A.
losing
B.
to lose
C.
being lost
D.
lost