Not only _____ great thoughts but also they express their thoughts in words which powerfully influence our minds and emotions.

A．did great writers have

B．great writers had

C．great writers have

D．do great writers have

当酸撒溅到皮肤上的处理办法正确的是（）。

A、先用大量冷水冲洗，再用2%硼酸溶液冲洗

B、先用大量冷水冲洗，再用5%碳酸氢钠溶液冲洗

C、先用5%碳酸氢钠溶液中和，再用大量冷水冲洗

D、先用2%硼酸溶液冲洗，再用大量冷水冲洗