is expected区别，as expected和as

区别就是两者意思是一样的，只是as expected是as is expected的省略句，省略系动词is，中文意思是不出所料正如预期的

例句如下

As expected/As is expected， vanadium was found in considerably greater quantities in skeletons in the burials of lower-status groups.正如预期的那样，在较低地位群体墓葬的骨骼中发现的钒要多得多。