抢救霍乱休克病人首要的措施是
A.抗菌治疗
B.纠正水与电解质丢失
C.升压药
D.激素应用
E.输血
参考答案:B
—Do you know ________ man standing there?
—I only know he's from ________ European country. [ ]
A. a; an
B. the; the
C. the; a
D. a; the
设某电视机电源电路的直流输出电压的目标值m=120V,功能界限,丧失功能后用户的平均损失(包括修理费及修理后电视机仍不能工作的损失费)AO=5001,工厂内超出规格的产品,可采用改变电路中电阻值进行修正(包括电阻元器件费用和人工费),A=2元,试求容差i()
A.120±15.8
B.120±1.9
C.120±12
D.120±9.6