OG 107

seasnow

没人提过的问题：

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）

(E) there are few services and little available water

Downzoning, zoning that...是什么用法啊？表示什么意思呢？同位语？什么叫downzoning？

running

downzone:

To reduce (density of housing or permitted expansion of construction) in a designated neighborhood.

zoning现在分词做伴随状语。

考点在于：名词单复数