在不同个体之间进行心功能比较时宜选用的评定指标是
A.搏出量B.心输出量C.射血分数D.静息心指数
参考答案:D
I like this jacket better than that one, but it costs almost three times _______.
A.as much
B.as many
C.so much
D.so many
硬结直径10~19mm()
A.PPD试验(+)
B.PPD试验(++)
C.PPD试验(+++)
D.PPD试验(++++)
E.PPD试验(-)