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【单选题】
图表制作完成后,所有的元素自动成组。如果想改变图表的单个元素,不能使用下面哪种选择工具A.
组选择工具
B.
直接选择工具
C.
直接选择套索工具
D.
选择工具
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举一反三
【单选题】Which of the following is NOT true? ______.
A.
Computers perform. not only data processing function in business, but also are used as tools in
B.
Problem-solving and decision-making
C.
In performing certain data processing tasks, computers can process information more efficiently and effectively than humans
D.
A company or individual must buy a computer system in order to be able to use one
【单选题】It is only thanks to the powerful new computers______worthwhile prediction in human affairs has been possible at all.
A.
who
B.
which
C.
that
D.
what
【单选题】Tom is very __________ at using computers, though he is only a high school student.
A.
good
B.
dependent
C.
confident
D.
interested
【简答题】#include using namespace std; class A { public: A( ); ~A(); A(int i, int j); void print( ); private: int a, b; }; A::A( ) { a=b=0; cout<<"Default constructor called.\n"; } A::~A( ) { cout<<"Destructo...
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