According to the text, most great thinkers and artists______.
A．were productive even in their later years
B．were most successful before the age of 30
C．made contributions regardless of age
D．contributed the most before old age

未分类题如果一幅图像能够表示的颜色数量为256种，则该图像的量化位数是()位。A. 4B.1C.256D. 8

未分类题The phrase 'put Estonia on the map'(line 5, para. 4)most likely means______.A．gain international fame for the Estonian governmentB．confirm Estonia's post-Soviet independenceC．garner respect for genetics research conducted in EstoniaD．bring global recognition to this little-known country

未分类题What does the quoted content of the last paragraph means?A．The algorithm of computers guided some fund companies' investment.B．Machines cannot tell the hidden meaning of people's words.C．The slang about dentist confuses computers.D．People are good at analyzing the meaning and mood of a text.

未分类题On which of the following would the author most probably agree?A．Washington D.C. is subject to the widest income disparity in America.B．D.C. government should pay more attention to the interests of the needy.C．The trend that rich families tend to move in D.C. should be curbed.D．The poorest family should move out of Washington.

未分类题The authors attitude towards the possibility of closing the gap in Washington is one of______.A．pessimismB．optimismC．skepticismD．objectiveness