33．— Shall I go and buy more food and drinks for the party?

— No, we have prepared a fridge of those. That ______ be quite enough.

A．can

B．may

C．might

D．Should

去甲肾上腺素的缩血管作用远胜于多巴胺，以下选项正确的是()

A．动脉端大10倍，静脉端大10倍

B．动脉端大10倍，静脉端大15倍

C．动脉端大10倍，静脉端大5倍

D．动脉端大10倍，静脉端大24倍

E．动脉端大10倍，静脉端大8倍