393.A cough is usually nothing to worry about unless it lasts for ten days ______.
A.or more
B.instead
C.at most
D.only
394.Running a company is not _____ a matter of hiring people-they also need to be trained.
A.simply
B.pratly
C.seriously
D.equally
393.答案是A;or more更多，at most 至多，句意:只要不是持续10天或更长，通常咳嗽是没有什么可担心的。
394.答案是A;not simply=not only不仅仅。句意:经营一家公司不仅仅是雇用工人的问题-他们也需要接受培训。
