—We had ______ really damp October this year.

—I can’t remember ______ autumn when it rained so much.

A．a; 不填

B．不填; the

C．the; an

D．a; an

下列拟肾上腺素药物中哪种对心血管的不良反应最小

A．舒喘灵

B．甲基麻黄素

C．肾上腺素

D．异丙基肾上腺素

E．氯喘