答案应该是:export,这里不是指出口物品(可数名词),而是指出口(不可数名词). export 名词 n. 1.输出,出口[u] half of our products are for export. 我们有一半产品出口. 2.输出品;输出额[p] rubber ** the country's principal export. 橡胶是该国主要出口物. 朗文在线: 1[uncountabl...
it has a fresh,appealing new design and clear layout,with rev**ed and updated examples,but retains all the key features of clarity and accessibility that h**e ...
1.will you please lend me the novel when you()it?1)will fin**h 2)h**e fin**hed 3)will h**e fin**hed 4)fin**hing 2.when we got off the train,it() 1)rained 2)had ...