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【单选题】
下列各组分子中，中心原子均采取sp3杂化方式，且分子的空间构型不同的是：A.
CH 4 、 CCl 4 ；
B.
CCl 4 、 SiF 4 ；
C.
BCl 3 、 H 2 O
D.
H 2 O 、 NH 3 。
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举一反三
【单选题】 Twelve ____ were hurt, but no ___ were lost in that accident.
A.
person, life
B.
people, lives
C.
peoples, lives
【单选题】Twelve ____ were hurt, but no _____ were lost in that accident.
A.
person, life
B.
peoples, lives
C.
people, lives
【单选题】Twelve _______ were hurt, but no _______ were lost in that accident.
A.
person, life
B.
people, lives
C.
peopeles, lives
D.
persons, life
【单选题】已知集合A满足:A∩{1,2}={2},A∩{0,3}={3},且A {0,1,2,3},则集合A=()
A.
{2}
B.
{2，3}
C.
{0，1，2，3}
D.
{3}
【单选题】已知集合A满足:A∩{1,2}={2},A∩{0,3}={3},且A {0,1,2,3},则集合A=
A.
{2,3}
B.
{2}
C.
{3}
D.
{0,1,2,3}
【单选题】Twelve______ were hurt, but no ______ were lost in the accident.
A.
people; life
B.
peoples; lives
C.
person; lives
D.
persons; lives
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