(Breaking) up water (into) hydrogen and oxygen is a good example of (as) is known as (a chemical change).

admin2008-07-06  48

问题 (Breaking) up water (into) hydrogen and oxygen is a good example of (as) is known as (a chemical change).

选项 A、Breaking
B、into
C、as
D、a chemical change

答案C

解析 as改为what。画线处应的是介词of的宾语,is的主语。as不符合,应该用what。
转载请注明原文地址:https://kaotiyun.com/show/z3mi777K
0

最新回复(0)