外商投资企业注册资本金按期足额到位前，可自境外借用人民币资金。
参考答案：错
The accident was _________his careless driving.[ ]
A. due to
B. because
C. thanks to
D. caused
已知250mm炮孔每米装药量为55kg/米，求把440kg这样炸药装入15米深炮孔，填塞高度多少米？
