单项选择题
A．looked very big B．was an opening to gold for men looking for old years ago C．was over San Francisco Bay D．all A, B, and C
A．Paolo Soleri. B．Ｂ. Ｆ. Skinner. C．Steve Gaskin. D．Buckminster Fuller.
A．Those who are authorized to spend money. B．Those who can make regular payments. C．Those who can afford to pay interest on the unpaid of the charges. D．Those who are very ric