Ada: How's the young man?
Bill:______
A、He's twenty.
B、He's a doctor.
C、He's much better.
D、He's Dick.
第1题:
He2的分子轨道表达式为:
A.[ (σ1s )1(σ*1s )1 ]
B.[ (σ1s )2(σ*1s )1]
C.[ (σ1s )2(σ*1s )2]
D.[ (σ1s )2(σ*1s ) 2(σ2s )1]
第2题:
下列原子或离子的核外电子从基态激发到2s或2p轨道,所需能量相同的是 ? ①H , ②He , ③He+, ④Li2+
第3题:
He’s watching TV? He’s ________ to be cleaning his room.
A) known B) supposed C) regarded D) considered
第4题:
A、doubt whether
B、doubtful
C、doubt it
D、doubtful whether
第5题:
A、his
B、him
C、he
D、he's
第6题:
“每天”的外文缩写是( )
A.q.n.
B.q.S.
C.q.1.d.
D.q.h
E.q.d
第7题:
“每天”的外文缩写是 ( )。
A.q.n.
B.q.S.
C.q.i.d.
D.q.h
E.q.d.
第8题:
2.—What's your _______ number?
—________347- 5186.
A. phone ;He's
B. bike ;That's
C. phone ;It's
D. bike's ;It's
第9题:
A.E-Er;H-He;S-Sfety
B.E-Erthquke;H-Height;S-Sfety
C.E-Environment;H-Helth;S-Sfety
D.以上都不对