1991年以后版的密集书库的图书丢失后按什么标准赔偿（）
A.原价的2倍
B.原价的5倍
C.原价的8倍
参考答案：B
In front of our house ______ we used to swim. [ ]
A. a river lies that
B. does a river lie where
C. lies a river which
D. lies a river where
赛跑者发生跖筋膜炎的最常见易感因素是()
A．扁平足
B．弓形足
C．训练错误
D．跟后松弛
E．不合适的足弓支持
