2.5÷0.4≈7(个).
答:妈妈需要准备7个瓶.
故选C
—How was that?
—I was chatting on line ______ the power went out.
A.because
B.while
C.as
D.when
项目财务评估主要包括()。
A.项目所需资金落实情况评估
B.项目投资估算与资金筹措评估
C.项目基础财务数据评估
D.项目的盈利能力和清偿能力评估
E.项目不确定性评估