贷款资金支付应坚持什么原则？
参考答案：
区别对待、分类管理、明确职责、严格把关的原则。
The boy made a hole in the door to let his cat______. [ ]
A. in
B. out of
C. to come in
D. to go out
简述更换脱盐电磁伐的步骤。
