42.（ ）

(单选题)advance (单选题)bank (单选题)suffer (单选题)silence (单选题)break (单选题)medicine (单选题)stomach (单选题)The health security systems of many countries are undergoing (单选题)The boy raised in the countryside has made ______ as those b (单选题)We Chinese are willing to give help to ______ is friendly to