油脂和淀粉的组成中都只含有 [ ]
A.碳元素、氢元素
B.碳元素、氧元素
C.氢元素、氧元素
D.碳元素、氢元素、氧元素
D
Beyond, a famous rock band, played its last concert in 2005 and then it officially _____ in Singapore.
A．broke down
B．broke out
C．broke up
D．broke in
细胞质的基本成分不包括（）
A.水
B.肽聚糖
C.无机盐
D.蛋白质
E.脂类
