在△ABC中,下列关系中一定成立的是[ ]
A.a<bsinA
B.a=bsinA
C.a>bsinA
D.a≥bsinA
答案:D
Mr Smith, ________ of the ________ speech, started to read a novel. [ ]
A. tired; boring
B. tiring; bored
C. tired; bored
D. tiring; boring
有关新生儿生理性黄疸,以下哪项是错误的()
A.生后2~5天出现黄疸
B.血清胆红素>257μmoL/L(15mg/dl)
C.足月儿14天内消退
D.早产儿4周内消退
E.一般情况良好