单选题
In order for one to achieve the desired results in this experiment, it is necessary that (he) (work) as (lastly) (as) possible.
A、
he
B、
work
C、
lastly
D、
as
【正确答案】
C
【答案解析】
as fast as possible意为“尽可能快地”，其中fast既有形容词词性也有副词词性，故 lastly改为fast。
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