单项选择题

Who was interested in computers after they came into existence

A．Students.
B．Mathematicians.
C．People from many sciences.
D．All the people.
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单项选择题
Which of the following is true according to the passage
A．All inventions have brought about complete changes.
B．Few of the inventions have brought about minor changes.
C．The inventions of the wheel and the automobile are not remarkable and influential.
D．We've benefited from the comfort, health, knowledge or power brought out by the inventions.
单项选择题
______ more attention, the tree could have grown much better than that one.
A．To give
B．Given
C．To be given
D．Having given
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