患者，男，68岁。头晕，耳鸣。测量血压180/80mmHg，其脉压大的原因可能是（）。

A.心输出量大

B.心缩力强

C.外周阻力大

D.大动脉弹性减弱

E.循环系统平均充盈压高

A big bush fire ___in Australia last night, but fortunately everyone ____escape.

A．took place; could

B．happened; can

C．broke out; was able to

D．happened; could