皮皮学，免费搜题
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搜题
【单选题】
维持人体相对恒定的体温，属于气的哪项功能A.
B.
温煦
C.
推动
D.
防御
E.
固摄
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】数据模型三要素
【单选题】Meanwhile, I always kept in touch with my former professor at college.
A.
kept in contact with
B.
kept pace with
C.
had an idea of
D.
exchanged letters with
【单选题】Meanwhile, I always kept in touch with my former professor at college, by letter and telephone.
A.
kept pace with
B.
kept in contact with
C.
had an idea of
D.
exchanged letters with