某商业银行一笔贷款金额为500万元,预期回收金额为350万元,回收成本为507/元。则该笔贷款的违约损失率为()。
A.40%
B.60%
C.70%
D.80%
参考答案:A
When I met the little boy____,I found he was clever. [ ]
A. the first time
B. for the first time
C. the first
D. for the first
简述柱塞助压成型有何特点?