13. The outward _____ may increase as anti-immigrant fever spreads in the united states.
A. departure B. exodus C. contagion D. adage

<departure>
departure 离开
depart 离开
</departure>

<exodus>
exodus 成群结队的外出、大批离开
</exodus>

<contagion>
contagion 传染、感染
infect 传染、感染
effect 结果
</contagion>

<adage>
adage 名言、格言
</adage>