第16题: [单项选择]根据《一般工业固体废物贮存、处置场污染控制标准》，一般性工业固体废物贮存、处置场分为（）。 A. 一类 B. 两类 C. 三类 D. 四类 参考答案:B 答案解析:一般性工业固体废物贮存、处置场分为Ⅰ类和Ⅱ类两个类型，堆放第Ⅰ类一般工业固体废物的贮存、处置场为第一类，简称Ⅰ类场；堆放第Ⅱ类一般工业固体废物的贮存、处置场为第二类，简称Ⅱ类场。
第21题: [单项选择]It was not until the accident happened ______ . A. when I became aware of my foolishness B. when my foolishness became obvious C. that did I realize my own folly D. that I became aware of my own foolishness 参考答案:D 答案解析:强调句。强调句采用“It is(was/will be)+强调部分+that+剩余部分(用陈述句语序)”的结构。
