A:{﹣2}∪2,+∞)
B:(﹣∞,﹣2∪2,+∞)
C:2,+∞)
D:{0}∪2,+∞)
如图表示人的受精及胚胎发育过程,请据图回答.
I want to go to the library ____(and/but) it is ten to seven.