分级别的匹配,以网络和IT维护外包为例,分支:数据集中后,网络和IT应用较简单,维护外包程度深。()
参考答案:错
The T-shirt only looks good _______ the model, I don't think you look so good _______ it.
A.in; in
B.in; on
C.on; on
D.on; in
下列物质中属于有机高分子化合物的是( )
A.乙醇
B.蛋白质
C.葡萄糖
D.蔗糖