由于器质性病变致肠腔变小,使肠内容物通过发生障碍,称为
A.动力性肠梗阻B.血运性肠梗阻C.机械性肠梗阻D.不完全性肠梗阻E.绞窄性肠梗阻
参考答案:C
急性感染性心内膜炎最具诊断意义的是()
A.肝脾肿大
B.血病原体培养阳性
C.高热
D.贫血
E.杵状指
Having studied the INMARSAT document, GMDSS document, SOLAS Convention and other international navigation documents, we all know that the Chapter IV of SOLAS Convention is mainly about().
A.the radio regulations
B.the technical terms and definitions
C.how to operate the GMDSS SES equipment
D.Maritime Communications