Ralph W. Emerson would always ______ new ideas that occurred to him.

A．set off

B．set about

C．set up

D．set down

抗休克治疗的关键措施是去除致休克的病因和下列哪项

A．提高周围血管张力

B．使用强心利尿剂

C．补充血容量

D．使用抗生素

E．防止急性肾功能衰竭