“经皮椎间盘穿刺术”，目前最常用的穿刺途径是()
A．后方进针
B．侧方进针
C．侧后方进针
D．侧前方进针
E．前方进针
参考答案：C
All possible means ____, but nothing can prevent the buildings ____.
A．has tried; from being pulled down
B．have tried; from pulling down
C．has been tried; from pulling down
D．have been tried; from being pulled down
海南历史上四大才子是指（）。
A、王佐
B、海瑞
C、张岳崧
D、丘浚
F、符确
