王师傅做102个零件,经检验100个合格,合格率是100%______.
100102×100%≈98%;
98%<100%;
故答案为:错误.
Some people are walking _______ the bridge and some boats are going _______ the bridge.
A.across, across
B.over, through
C.through, through
D.through, over
男性,25岁,因车祸致伤急诊人院,检查:呼吸困难,烦躁不安,心率95次/分,血压110/70mmHg,X线检查示右肺压缩20%,其治疗首选
A.吸氧B.保持呼吸道畅通C.镇静止痛D.胸腔穿刺排气E.胸腔闭式引流