能见度目标物的仰角不宜超过()度。
A.5
B.6
C.8
参考答案:B
Michael's new house is like a huge palace, _____ with his old one. [ ]
A. comparing
B. compares
C. to compare
D. compared
急诊室抬来27岁妊娠近足月初产妇,产妇烦躁不安,下腹疼痛。考虑肩先露娩出的新生儿颜面及全身皮肤青紫,呼吸表浅,心率120次/分有力,此时首先应作的处置是()
A.吸氧,保暖
B.行人工呼吸
C.清理呼吸道
D.纠正酸中毒
E.脐静脉注射纳洛酮