①酒精②食盐③石墨④甲烷⑤水⑥蔗糖⑦石灰石⑧味精⑨食用油⑩鸡蛋白.
A.①②③④⑥
B.⑦⑧⑨⑩
C.①④⑥⑧⑨⑩
D.全部
答案:C
They have T-shirts __________ green and black for only $13 __________ the shop.[ ]
A. at, at
B. in, in
C. with, with
不同品种抗生素发酵使用到糖类为什么不同?