鉴别肝性腹腔积液与下腔静脉阻塞所致腹腔积液,下列哪项最有意义
A.腹壁静脉曲张
B.下肢凹陷性水肿
C.腹水常规检查
D.蜘蛛痣
E.腹壁静脉血流方向
参考答案:E
How much one enjoys himself travelling depends largely on_________he goes with,whether his friends or relatives.
A.what
B.who
C.how
D.why
抢险救援消防车举升灯杆的顶端为()。
A.电动云台
B.发电机
C.水泵阀
D.发动机