A:She had eggs and sausages.
B:She had eggs and milk.
C:She had fish and chips.
下列有关膜蛋白的叙述,错误的是( )
爸爸拿回来了许多书。(改成“把”字句)
have Do does Is isn't has are am
苏伊士运河是( )的分界线.
如图所示为玉米种子和菜豆种子的结构,据图回答问题: