A：用水冲熄
B：用湿抹布盖灭
C：用沙土盖灭
D：用泡沫灭火器扑灭
His comprehensive surveys have provided the most _________ statements of how, and on what basis, data are collected.
主食
米饭、馒头
副食
牛肉、鱼
饮料
牛奶、白开水
用你所学的化学知识，建议小丽妈妈增加的食物是（ ）
