下列心脏病很少引起肺淤血的是()
A.高血压性心脏病
B.肺源性心脏病
C.风湿性心脏病二尖瓣狭窄
D.梅毒性心脏病
E.冠心病
参考答案:B
Kathy ______ a lot of Spanish by playing with the native boys and girls.
A.picked up
B.look up
C.made up
D.turned up
当孕妇血清雌三醇下降而雌二醇增高常提示
A.早产B.正常妊娠C.多胎妊娠D.雌激素增加E.孕酮增加