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1·We're late because one of our tires bles out.

我们迟到是因为一个车胎爆了。

2·Task design variables include task input, task condition and task outcome varia-bles, and each variable still includes some design factors.

任务设计变量包括任务输入变量、任务条件变量和任务结果变量，每个变量又包含一些任务设计因素。

3·This paper reviews the work from three respects. (1) The work makes use of a vast quantity of documents , of which 83 per cent are foreign ones , and is attached with lots of ta- bles and figures.

该文从3个方面对这本专著进行了评价：（1）文献丰富，其中外文文献占83％，并且附有效多的表格和插图；