()
A.
B.
C.
D.
参考答案:C
解析:
原数列等于。分子是等差数列,分母是等比数列。
Li Gang was required to apologize ____ the people present at the meeting _____ what he had done. [ ]
A. for; by
B. with; about
C. to; for
D. at; with
成人阑尾切除术后1天会出现烦躁、剧烈腹痛。心率112次/分,血压90/60mmHg,腹胀,全腹压痛,肠鸣音弱,为除外腹腔内出血首要的检查是()
A.B超
B.CT
C.MRI
D.腹腔穿刺
E.立位腹平片