五跨关节中间跨为过渡跨，过渡跨两接触线等高处导线高度允许比相邻定位点抬高（）mm。
参考答案：0～40
—Bruce was killed in a traffic accident.
—________ I talked with him yesterday morning!
A．What a pity!
B．I beg your pardon?
C．Sorry to hear that.
D．Is that so?
肝癌最常见、最重要的症状与体征是（）.
A.食欲减退
B.进行性肝脏肿大及肝区痛
C.肝硬化表现
D.血性腹水
E.黄疸
