请教一道OG－SC：＃218

tupan

请教一道OG－SC题：
No.218: Despite protests from some waste-disposal companies, state health officials have ordered the levels of bacteria in seawater at popular beaches to be measured and that the results be published.
(A)    the levels of bacteria in seawater at popular beaches to be measured and that the results be published.
(B)    that seawater at popular beaches should be measured for their levels of bacteria, with the results being
(C)    the measure of levels of bacteria in seawater at popular beaches and the results to be
(D)    seawater measured at popular beaches for levels of bacteria, with their results
(E)    that the levels of bacteria in seawater at popular beaches be measured and the results
B,C,D 很容易排除，A也很容易看出and前后结构不平行，但答案E我认为应该是that the levels of bacteria in seawater at popular beaches be measured and that the result be. 为什么这里可以省略that和be呢？特别是be省略后感觉不像一个从句了。希望哪位解释一下，类似这种题目有没有什么规律？哪些可省那些不可省？thanx!

1stzhang

这是一个简单的省略,讨论了很多次.比如: I am a teacher and he a student.

iselibra

以下是引用1stzhang在2003-10-9 18:36:00的发言：
这是一个简单的省略,讨论了很多次.比如: I am a teacher and he a student.

这个问题我一直搞不清楚
省略的应该是相同的动词阿，也就应该省略的是am
难道只要都是be动词就可以了么？
还有，是否这个需要相同的时态