单选题
公共英语三级
2010-08-13
The interpreters rely on adrenaline because_____.
参考答案
B
答案解析
第四段第一句“Interpreters also rely on adrenaline--which is caused by the stress and challenges of the job－to keep them going through their demanding schedules．”以及下旬“It is known that their heart rates speed up while they ale working．”推知adrenaline的作用是使他们处于一种兴奋状态之中。
