一道考主谓一致的题og-107

以下是引用dandan74在2003-10-3 14:14:00的发言：
107. Downzoning, zoning that typically results in the reduction of housing density, allows for more open space in areas where little water or services exist.
(A) little water or services exist
(B) little water or services exists
(C) few services and little water exists
(D) there is little water or services available
(E) there are few services and little available water
OG又这样一段解释：
Also, since water and services are being discussed as a pair, they should logically be treated as a compound subject requiring a plural verb; thus, the singular verbs exists (in B and C) and is (in D) are wrong.
难道是说不论什莫情况下都要用复数马?我怎莫觉得对于or/and的复合名词,谓语的数应该跟后面一个一致呀?那位给说说?

以下是引用remeo在2003-10-3 16:57:00的发言：


当2个并列成分用or连接时，谓语动词与后面的一致，类似的有as well as ,either ...or...等本题中的services不就是复数吗？
而and后面的用复数形式的谓语动词，即使他连接2个不可数的成分。

如果你这方面还有不熟悉的，可先记熟一些固定搭配该如何用正确的动词上的“数”来表达。