In C program, all variables must be (70) before use, usually at the beginning of the function before any (71) statements.

A．stated

B．writed

C．illustrated

D．declared

对于病毒性脑膜脑炎引起的头痛，下列哪项治疗是不合适的

A．高渗脱水剂：如20%甘露醇
B．血容量扩张剂：如低分子右旋糖酐
C．激素：如地塞米松
D．镇痛剂：如对乙酰氨基酚
E．降温退热：如冰枕