正常心胸比值范围以及平局值是A0.4-0.5 0.45B0.48-0.52 0.5C0.45-0.55 0.5D0.5-
1个回答
选A,
正常心胸比值一般不超过0.5.
男性心胸比值为0.4148±0.0396,274例女性心胸比值为0.4438±0.039.
相关问题
0.75 ,0.65 ,0.45 () A 0.78 B 0.88 C 0.55 D 0.96
0.5,45%,0.4,0,35,30%
7.5÷0.5=0.45÷4.5=0.11×0.6=
0.55×30.4+0.48×52.5 巧算
(5/4-0.8)/0.63-(3/4/0.45-7/5)
(5-5)/45=0 (55-10)/45=0 (555-15)/45=12 (5555-20)/45=123 (555
0.78*4.5+45*0.022
下列式子成立的是( )A. (+5)-(-5)=0B. 0-5=5C. (-5)-(-5)=0D. (-5)-0=5
(55*4.5-45*0.3)*44.
下列式子错误的是:A.|5|=|-5| B.|-3|>0 C.|0|=0 D.|1.4|<0