一个长方形的游泳池宽是15米,长是宽的4倍,小刚围着游泳池跑了一圈,一共跑了多少米?
(15×4+15)×2,
=(60+15)×2,
=75×2,
=150(米),
答:一共跑了150.
Tom is one of the best students in the school and there is no _______that he will get the first prize in the competition.
A.wonder
B.problem
C.doubt
D.need
在药学服务过程中,病人产生不依从性的首要原因是
A.用药方案复杂B.药物不良反应C.药物的剂型与规格不适宜D.工作繁忙或老年人健忘漏服E.对病人缺乏用药指导