病人术前脉率规则。44次/分。运动后仍然规则40次/分,提示下列哪种情况()
A.正常
B.心室肥大
C.心房压过高
D.完全性房室传导阻滞
E.房室结性心律
参考答案:D
A shark has many () a fish.
A.difference from
B.differences from
C.different with
D.differents with
在十二指肠空肠曲与横结肠系膜根部之间,有腹膜及少量平滑肌纤维形成的小皱襞,称为十二指肠悬韧带。()