TPO 9: The reading is correct in pointing out the problems associated with oil-powered cars. Yes, oil is a finite resource, and yes, burning oil harms the environment. However, the reading is way too optimistic in its assessment of hydrogen-based fuel-cell engines. Hydrogen is not the solution to these problems.
从本质来讲,很多问题可以从不同角度看待,就得出不同的结论。就像独立写作题目,一个问题,可以同意,也可以反对,绝对一边倒的情况比较少见。遇到这种情况,可以采取折中一些的表达:比如替换completely为partly等。