肝源性水肿患者不伴有的体征是（）。
A.肝-颈静脉反流征阳性
B.双下肢水肿
C.蜘蛛痣
D.腹壁静脉曲张
E.脾大
参考答案：A
活塞式压缩机气缸内有不正常敲击声的原因？
—Will you go for a picnic with your parents this weekend?
—It just ______ the weather. [ ]
A. because of
B. decides by
C. depends on
D. thanks to
