When he was in trouble, I offered to lend him a hand, but he ________. [ ]

A. has refused

B. would have refused

C. had refused

D. refused

该患儿最主要的护理诊断是

A．体温升高

B．活动无耐力

C．心排出量减少

D．低效性呼吸形态

E．有体液不足的危险