沉淀池短流现象一般会引起()。
A、浊度去除率提高
B、浊度去除率降低
C、浊度去除率不变
D、都有可能
参考答案:B
I’ll lend you the money only on ______you can pay ______on time.
A.condition that;it back
B.condition that;for it
C.one condition;for it
D.one condition;it back
骨折的特有体征是什么?