The major problem with E-mail is that it is （1） easy to use that people can become （2） with messages （3） they can possibly answer in a day. In addition, mail boxes require some management to （4） messages or archive those that might be required later. Senders don’t always know about your E-mail backlog and often send （5） messages.
（5）处应选择（）The major problem with E-mail is that it is （1） easy to use that people can become （2） with messages （3） they can possibly answer in a day. In addition, mail boxes require some management to （4） messages or archive those that might be required later. Senders don’t always know about your E-mail backlog and often send （5） messages.
（2）处应选择（）Chronic insomnia is a major public health problem. And too many people are using (1) therapies, even while there are a few treatments that do work. Millions of Americans (2) awake at night counting sheep or have a stiff drink or (3) an pill, hoping it will make them sleepy. (4) experts agree all that self-medicating is a bad idea, and the causes of chronic insomnia remain (5) .a
Chronic insomnia is a major public health problem. And too many people are using (1) therapies, even while there are a few treatments that do work. Millions of Americans (2) awake at night counting sheep or have a stiff drink or (3) an pill, hoping it will make them sleepy. (4) experts agree all that self-medicating is a bad idea, and the causes of chronic insomnia remain (5) .
Almost a third of adults have trouble sleeping, and about 10 percent have (6) of daytime impairment that signal tru
A. undertaking
B. underlining
C. underlying
D. undermining
我来回答:
