呼吸性酸中毒的治疗原则是()
A.改善通气占主要地位
B.抗感染治疗占主要地位
C.体液治疗占主要地位
D.PEEP治疗占主要地位
E.A~C全错
参考答案:A
数列{an}中,an=32,sn=63,
(1)若数列{an}为公差为11的等差数列,求a1;
(2)若数列{an}为以a1=1为首项的等比数列,求数列{am2}的前m项和sm′.
I think swimming is ______ hiking. [ ]
A. not as interesting as
B. not interesting as
C. not more interesting as
D. not the most interesting