28. When business is ______, there is usually an obvious increase in unemployment.      

    A. degraded   B. depressed   C. reduced   D. lessened

<depress>

depress  v.使沮丧, 使萧条

depression  沮丧, 萧条, 低洼地带

</depress>

<degrade>

degrade  v.(使)降级, (使)堕落

</degrade>

<reduce>

reduce  vt.减少, 缩小

induce  诱惑, 劝诱

produce  生产

deduce  推断, 推论, 演绎出

educate  教育

education  n.教育

introduce  介绍

</reduce>

<lessen>

lessen  减少, 变得更小

enrich  使丰富, 使充实

</lessen>

<recession>

recession  （经济）不景气

</recession>

<redundant>

redundant  冗余的

</redundant>