简答题The production of these biofuels, such as ethanol made from maize, has risen sharply recently, _____ the replacement of food crops with fuel crops has been heavily criticized. A、but B、and C、when简答题The technology allows consumers a choice, increasing their sense of satisfaction. A、so B、thus C、therefore简答题为了使语篇连贯，科技论文写作中必须使用连接成分。多选题Brick is thermally efficient building material it is also cheap. A、while B、and C、meanwhile简答题语篇内部的衔接机制分为两类：语法接应机制与词汇接应机制。语法接应机制包括照应、省略和替代、连接；词汇接应机制包括搭配、重复、同义或反义、上下义、整体与局部的关系。简答题语篇连贯是衡量语篇完整性、一致性的标准，与写作质量存在密切关系。简答题the increase in residence fees more students are moving out. A、Despite B、With C、As简答题科技论文写作中常常使用语篇内部衔接机制来有机连接句子或者段落，以增加语篇的连贯性，尤其是代词、词语重复和逻辑连接词的使用。简答题科技语篇语境独立性强，语篇的连贯主要依靠语篇内部的衔接机制。简答题most people use the train, a minority walk or cycle. A、Because B、Since C、While