【判断题】论文的初稿就是论文的一稿,可以交给指导老师评阅。
【单选题】Some people waste food,________other people haven’t got enough to eat.
【判断题】一般情况下,车站出入口必须在首班载客列车到站前5分钟开放。
【单选题】Some people waste a lot of food others in the world haven’t enough to eat.
【单选题】单位重量的液体从泵的吸入口到叶片入口压力最低处的总压降称为( )。
【判断题】一般情况下,车站出入口必须在首班载客列车到达车站前10min开放。
【单选题】This article shows that ______.
A.
some people are trying to solve their waste problems
B.
the government is not concerned with the problem of wastes
C.
recovered materials won't be able to compete with new materials
D.
citizens will unwillingly pay the costs of changing the waste system
【单选题】一般情况下,车站出入口必须在首班载客列车到达之前()开放。