【单选题】双子叶植物茎的初生结构,在其横切面上,由外向内依次为()
【单选题】Mr. Green affords his traveling by all of the following EXCEPT ______.
A.
working for his friends living in the place he's visiting
B.
singing and giving concerts during the trip
C.
living cheaply when traveling
D.
money from his main work
【简答题】餐饮业的基本特征有: 市场客源的 ,对国民经济发展的 ,产品风味的 ,产品生产、销售与消费的 , 餐饮服务的 ,餐饮服务的 。
【简答题】餐饮业具有四个基本特征,它们是:对旅游业和国民收入的依赖性、市场客源的广泛性、()和()。
【单选题】Mr. Green is talking _____________ with his friends. [ ]
【单选题】When Mr. Green was away on business, his neighbor gave his wife a(n) ______ with the housework.