机体处于炎热环境中时()
A.完全靠增强散热维持机体热平衡
B.血流的逆流交换作用增强
C.血体表层发挥隔热器作用
D.交感神经紧张度增强
E.机体代谢率明显降低
参考答案:A
Joe works two part time jobs. One week Joe worked 8 hours at one job, earning $150, and 4.5 hours at other job, earning $90. What were his average hourly earnings for the week ?()
A.$8.00
B.$9.60
C.$16.00
D.$19.20
E.$32.00
男,20岁,从西藏到内地学习1个月,体检发现HCT明显增高。
为得到满意结果,制备血涂片时需用()
A.大血滴,大角度,快推
B.小血滴,小角度,慢推
C.小血滴,大角度,慢推
D.大血滴,大角度,慢推
E.大血滴,小角度,快推