选择两个或两个以上的标志，对同一总体进行的重叠分组，称为复合分组。 ()
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A modern aircraft ______.
A. is run by electronic computers
B. carries a bigger load of electronic apparatus than pay-load
C. does not need mini-computers at all
D. can carry a bigger pay-load if the electronic apparatus carried by it becomes lighter
The word "crown" at the end of paragraph 3 is similiar in meaning with ______.
A. disappoint
B. beat
C. please
D. overcome
If all linear dimensions of a computer is scaled down to one tenth, ______.
A. the speed of its operation will go up ten times
B. the electric signals will go to and fro ten times faster
C. its operation speed will remain constant
D. its weight will be reduced to one tenth
What was NOT the reason for their final victory according to what French coach Aime Jacquet thinks？
A. They have worked very hard for the last two years.
B. They believe the abilities of their players.
C. They think the absence of several good players on the part of the Brazil team offered them good chances.
D. They have successfully overcome all the obstacles on the way to the victory.
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