属于尺骨的结构是（）
A.尺神经沟
B.鹰嘴窝
C.冠突窝
D.三角肌粗隆
E.桡切迹
参考答案：E
It’s hard to believe____ the way out of the forest without the help of the local guide.
A．what they were able to find
B．what were they able to find
C．how they were able to find
D．how were they able to find
音乐作品：《蓝色多瑙河》圆舞曲
