淡漠性甲状腺功能亢进症可有哪些表现()
A.多见于老年人
B.神态淡漠、嗜睡乏力、反应迟钝
C.起病隐袭
D.眼征、甲状腺肿均很明显
E.亢奋
参考答案:A, B, C
He has a friend who _____ the piano very well. [ ]
A. play
B. playing
C. plays
D. played
围堰的种类中,适用于黏性土,砂类土及碎石类土河床的是( )
A.土围堰
B.钢筋混凝土板桩围堰
C.钢板围堰
D.双壁钢围堰