A.
B.
C.
D.
[单选题]A.300μFB.0.03FC.150μF
[单选题]A.呼吸骤停,呼吸衰竭B.血流动力学不稳定,心率成人>140次/分,儿童>180次/分或有低血压C.进行性高碳酸血症伴酸中毒PaCO>50mmHg,或
[单选题]A.44.4B.51.4C.61.4D.71.4
[单选题]A.30.16%B.22.09%C.37.30%D.39.69%
[单选题]A.30.16%B.22.09%C.37.30%D.39.69%
[单选题]A.44.4B.51.4C.61.4D.71.4
[单选题]A.条件(1)充分,但条件(2)不充分B.条件(2)充分,但条件(1)不充分C.条件(1)和条件(2)单独都不充分,但条件(1)和条件(2)联合起来充
[单选题]A.条件(1)充分,但条件(2)不充分B.条件(2)充分,但条件(1)不充分C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分D
[单选题]A.增进美观B.改善发音C.增加义齿稳定性D.提高咀嚼效率E.增加接触面积