南明 * * 永历皇帝,对郑成功寄予厚望,封他为()
A.东莞郡王
B.多罗郡王
C.宝平郡王
D.延平郡王
参考答案:D
You are running a project for a customer based on a cost reimbursable contract with the following terms: Target costs, $1000000; fix fee, 100000; benefit/cost sharing, 80/20; price ceiling, 1200000. Which is the PTA (point of total assumption, break point)of the project ()
A. $1300000.
B. $1500000.
C. $80000.
D. $1125000.
利用矿物磁性差异进行选矿的方法叫()。
A.磁选
B.重选
C.浮选