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【单选题】
若有以下类型标识符定义: int x=2;char w='a';float y=23.45f;double z=45.6789;则表达式w*x+y-z的结果类型是( )A.
float
B.
char
C.
int
D.
double
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举一反三
【简答题】普通单开道岔的道岔中心为直线线路中心线与侧线线路中心线的交点称为道岔中心。()
【单选题】But the Internet can bring some()effects, too. The most common one, some teenagers are addicted to computer games on the Internet.
A.
negative
B.
positive
C.
important
【简答题】A．Some are built underground. B．Some can be eaten. C．Most are sewed with grasses. D．Most are dried by the sun.
【单选题】Which of the three approaches tended to later gain most acceptance?
A.
situation
B.
trait
C.
power
D.
behavior
【简答题】A) many B) several C) some D) most
【单选题】The passage mentions 'the Bible' and 'some New Age tome' in order to show
A.
the storage power of an electronic book.
B.
the importance of the future electronic book.
C.
the electronic book is as thick as the Bible.
D.
The Bible should be preserved in an electronic book.
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