餐前(服)在处方和药品说明书中常见的外文缩写是( )。
A．prnB．Ac．C．Aq．D．iv．E．hs．
参考答案：B
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.
政府在发行国债时，规定各种号码国债的不同偿还期限，由认购者自由选择，这种国债偿还方法称为( )．
A．买销偿还法
B．比例偿还法
C．抽签偿还法
D．轮次偿还法
