可燃气体按气体所处状态,可分()类。
A、一
B、二
C、三
D、四
参考答案:C
—What does your father think of your study!
—______. [ ]
A. He likes is
B. He doesn't mind them
C. He loves me
D. He can't stand it
在合同执行过程中,由于通货膨胀而使工料成本增加,按合同规定对合同总价进行相应调整的合同形式称为()。
A.可调总价合同
B.不可调总价合同
C.成本加酬金合同
D.纯单价合同