皮皮学，免费搜题
登录
搜题
【单选题】
人体中最经济、最重要的能量来源是A.
碳水化合物
B.
脂肪
C.
蛋白质
D.
矿物质
E.
维生素
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】distance measurement
【简答题】Choosing a nice mountain bike for you is easier than learning how to ride it. Keep these tips in mind： Decide how you are going to use your new mountain bike. Are you a new rider who simply wants to t...
【简答题】distance measurement instrument
【简答题】Heading off to college this year? Here are some fashion tips from our experts you should keep in mind: Dress to impress: Stylist and business consultant Daniela Smith says, “Girls should keep in mind ...
【简答题】Heading off to college this year? Here are some fashion tips from our experts you should keep in mind： Dress to impress．Stylist and business consultant Daniela Smith says，“Girls should keep in mind th...
【简答题】Heading off to college this year? Here are some fashion tips from our experts you should keep in mind; Dress to impress: Stylist and business consultant Daniela Smith says, 'Girls should keep in mind ...
相关题目：