题目内容：
第56题应选：
A．develop B．provide
C．conceal
D．show
参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：
单选题：第56题应选：
- 题目分类：理工类
- 题目类型：单选题
- 号外号外：注册会员即送体验阅读点！
B．provide
C．conceal
D．show
B．provide
C．conceal
D．show
第53题应选：
第53题应选：A．what B．which C．where D．when
第52题应选：
第52题应选：A．closeness B．calmness C．toughness D．thoroughness
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