第30题: [单项选择]()不是水路运输的优点。 A. 建设投资少 B. 受自然条件影响大 C. 节省能源 D. 运量大 参考答案:B
第31题: [单项选择]The Greyhound ______ outside of New York Bus Station at 6 p. m. and started for Washington D. C. at6:20p, m. A. pulled up B. pulled on C. pulled out D. pulled down 参考答案:A 答案解析:[解析] pull up“(使)停下”,如:The car pulled up outside the guesthouse.pull on“穿戴(袜子、手套等)”;pull out“拔出”,“挖出”