单项选择题

A．Acquire information from satellites more efficiently.
B．To realize full coverage of area the satellite passes over.
C．Building more ground observation centers.
D．Compare satellites information with those from ground.
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单项选择题
Home-school advocates are of the opinion that________.
A．things in public schools are not so bad as has often been said
B．their tolerance of public education will attract more kids to public schools
C．home schooling is superior and, therefore, they will not easily give in
D．their increased cooperation with public school will bring about the improvement of public education
单项选择题
A．As one of the greatest American scholars.B．As one of America’’s most ingenious inventors.C．As one of the founding fathers of the United States.D．As one of the most famous activists for human rights.
A．As one of the greatest American scholars.
B．As one of America’’s most ingenious inventors.
C．As one of the founding fathers of the United States.
D．As one of the most famous activists for human rights.
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