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【单选题】
下列关于修饰符混用的说法,错误的是( )A.
abstract不能与final并列修饰同一个类
B.
abstract类不能有自己的构造方法
C.
abstract方法所在的类必须是abstract类
D.
static方法中能处理非static的属性（p51，static修饰方法的特点）
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A.
spends
B.
costs
C.
took
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A.
since
B.
that
C.
before
D.
after
【单选题】It took western companies many years to ______ from the oil crisis of the mid-70s.
A.
regain
B.
recover
C.
retain
D.
refresh
【简答题】 sense of how the US shows humor Living in a new country gives me many surprises. The first surprise was the way that the US people speak One day I saw someone was having a public speech in a sq...
【单选题】The author gives the example of Henry Metcalf to show that ______.
A.
older parents should exercise more to keep up with their athletic children
B.
many people are young in spirit despite their advanced age
C.
older parents tend to be concerned about their aging bodies
D.
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