简述臂前区前筋膜鞘的构成及内容。

－ How long ______ here? －Ten minutes. Tim ______ here with me.

A．are you; has walked

B．were you; walked

C．have you been; walked

D．have you been; has walked

非接触式银联IC卡

情感

白细胞数量减少可能由血液病、营养不良和苯中毒及恶质病等导致。

喷射混凝土的回弹率：侧壁不应大于（）%，拱部不应大于（）%