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【单选题】
下列关于多态的描述中,错误的是( )。A.
要实现多态，必须要有继承
B.
要实现多态，必须要有成员变量的覆盖
C.
要实现多态，必须要有方法的重写
D.
要实现多态，必须要有对象的向上转型
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【简答题】一般来说，投资者应选择增长型的行业和在行业生命周期中处于初创期的行业进行投资。（ ）
【简答题】一般来说，投资者应选择增长型的行业和在行业生命周期中处于初创期的行业进行投资。 （ ）
【单选题】He has made it clear ___ he won’t agree to the plan.
A.
that
B.
whether
C.
what
D.
if
【单选题】It was because he had made such great contribution to the world peace ______ he won the Nobel Prize for Peace.
A.
that
B.
so
C.
since
D.
before
【单选题】–Jack has won the and he will get a reward. --He ____it. He has been training for the for half a year!
A.
wants
B.
asks
C.
deserves
D.
worth
【单选题】____person like him won’t be satisfied with ____ little progress that he has made.
A.
The; a
B.
The; /
C.
A; /
D.
A; the
【单选题】Guangzhou Evergrande FC has made _____ progress this season and as _____ result it has won the national champion.
A.
/; a
B.
a; a
C.
a; the
D.
/; /
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