【多选题】赴饭店途中的导游服务是地陪首次向游客提供的导游服务,除了持热情友好的态度之外,地陪还应在()方面展现其职业素养。
【简答题】We need to be aware of what mass production is doing to the planet.
【单选题】线性规划转化为标准形式时,下列说法不正确的是:
C.
取值无约束的变量可由两个取值非负的新变量替代
【多选题】What are the novels described American dream ?
【多选题】What are the novels described American Civil War?
【简答题】The main implication for teaching is that we need to be aware of the_________ of a text and to be able to make students aware of them.