Recently implemented "shift-worker equations" based on studies of the human sleep cycle have reduced sickness, sleeping in the job, fatigue among shift workers, and have raised production efficiency in various industies. A B fatigue among shift workers, and raised C and fatigue among shift workers while raising D lowered fatigue among shift workers, and raised E and fatigue among shift workers was lowered while raising
不太明白while为什么不用对称也可以呢?作者: ranshuyang 时间: 2010-5-24 00:37
答案是什么呢？作者: mikiluang 时间: 2010-5-24 01:06
答案是C的//作者: silent7706 时间: 2010-5-24 04:33
这样看这个句子'"shift-worker equations" have reduced sickness[phrase2 +, and phrase 3] while raising production efficiency in various industries.' 对称的是插入的几个phrases，而不是"while"作者: sportmann 时间: 2010-5-24 05:43
这是我的一点思路，供你参考。
找句子主干。 Equations have reduced sickness, sleeping in the job, 这里最后一个并列词前面加and, 后面再跟一个并列动词或从句。
Equations have reduced A, B, and C, while raising...