Having two eyes, instead of one, is particularly useful for ______.A. seeing at nightB. seeing objects far awayC. looking over a wide areaD. judging distances
Having two eyes, instead of one, is particularly useful for ______.
A. seeing at night
B. seeing objects far away
C. looking over a wide area
D. judging distances
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以下对枚举类型名的定义中正确的是（）。A．enum a={one,two,three};B．enum a {one=9,two=-1,three};C．enum a={"one","two","three"};D．enum a {"one","two","three"};