(Continued) exposure to stress has been linked to (worsened) functioning of the immune system, (leaving) a person more liable (f

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问题 (Continued) exposure to stress has been linked to (worsened) functioning of the immune system, (leaving) a person more liable (for) infection

选项 A、Continued
B、worsened
C、leaving
D、for

答案D

解析 改为to。本题考查固定搭配的用法。liable一词既可与介词for搭配,也可以和介词to搭配,但意义有差别。be liable for意为"在法律上负有责任的";be liable to意为"易于…的;有…倾向的"。由于免疫系统功能下降,那么人就更"容易"受到感染,故此处应该用be liable to短语。
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