顺序练习
话题练习
题型练习
口语评分
写作评分
单科机考
A.
Plastic containers may change the flavor of milk.
B.
Light may negatively affect the quality of milk.
C.
People prefer to buy milk in see-through containers.
D.
Opaque containers are effective in protecting milk from bacteria.
正确答案:B
译文