题目内容
（请给出正确答案）
[单选题]
We can't manage that _______ you pay for the installation.
A.if
B.until
C.unless
答案
C、unless
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题目内容
（请给出正确答案）
答案
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.if
B.until
C.unless
答案
C、unless
如果结果不匹配，请 联系老师 获取答案
更多“We can't manage that _______ y…”相关的问题
disappears and recuperation begins. The tired mind gathers new energy, and the memory improves.
Some adults require little sleep; others need eight to ten hours in every twenty-four hours. Infants sleep sixteen to eighteen hours daily, the amount gradually diminishing as they grow older. Young students may need twelve hours; university students may need ten. A worker with a physically demanding job may also need ten, whereas an executive working under pressure may manage on six to eight. Many famous people have little sleep. Napoleon Bonaparte, Thomas Edison and Charles Darwin apparently averaged only four to six hours a night.
Whatever your individual need, you can be sure that by the age of thirty you will have slept for a total more than twelve years. By the age you will also have developed a sleep routine: a favorite hour, a favorite position, and a rule you need to follow in order to rest comfortably.
Investigators have tried to find out how long a person can go without sleep. Several people have reached more than 115 hours nearly five days. Whatever the limit, it is absolute. Animals kept awake for from five to eight days have died of exhaustion. The limit for human beings is probably about a week.
(1).By writing this passage, the writer intends to tell us that _______.
A、sleep is important for good mental and physical health
B、a light sleep is as restful as a deep sleep
C、memory is improved during sleep
D、sleep is relatively unimportant for human beings
(2).The amount of the sleep required may ___.
A、tire an individual mind
B、help infants grow older
C、apply pressure on an executive
D、that they didn’t sleep long
(3).If a person is not allowed to follow his own sleep routine, he will probably _____.
A、never fall sleep
B、not sleep well
C、lost his memory
D、begin to daydream
(4).The author implies that if human beings are kept awake for more than a week the result _____.
A、is hard to imagine
B、will probably be a mental breakdown
C、is difficult to describe
D、will probably be dead
(5).From the amount of sleep Napoleon, Edison, Darwin required, we can conclude ___.
A、 that they were famous
B、 that they were executives
C、 hat they were intelligent
D、 that they didn’t sleep long
"Must we finish the work in an hour？"
"No, you ()."
A. don't
B. needn't
C. mustn't
D. can't
That's international practice. We can' t () it.
A. break
B. broken
C. have broken
D. breaking
–– Frank: We haven't got together for a long time. How about lunch next week？
–– Nick: I' m pretty tied up all next week. How about we plan on two weeks from today？____.
–– Frank: OK Wednesday in two weeks.
A: I can reach it on that Wednesday
B: I can get it on that Wednesday
C: I can assure it on that Wednesday
D: I can make it on that Wednesday
Shall we go out for dinner tonight？（）.
A.No, you can't
B.Yes, please
C.Thank you, I don't want to
D.Sorry, I have a report to finish
A.nor can we
B.and nor we can
C. neither we can
D.and we can neither
A.a, /
B.the, /
C.a, the
D.the, the
A.Sorry,I don´t know
B.Can we get some discount for weekend
C.We will be attentive to it as soon as possible
D.We do have rooms for those days
● WLANs are increasingly popular because they enable cost-effective connections among people, applications and data that were not possible, or not cost-effective, in the past. For example, WLAN-based applications can enable fine-grained management of supply and distribution （66） to improve their efficiency and reduce （67）. WLANs can also enable entirely new business processes. To cite but one example, hospitals are using WLAN-enabled point-of-care applications to reduce errors and improve overall （68)care. WLAN management solutions provide a variety of other benefits that can be substantial but difficult to measure. For example, they can protect corporate data by preventing （69）through rogue access points. They help control salary costs, by allowing IT staffs to manage larger networks without adding staff. And they can improve overall network management by integrating with customers’ existing systems, such as OpenView and UniCenter. Fortunately, it isn’t necessary to measure these benefits to justify investing in WLAN management solutions, which can quickly pay for themselves simply by minimizing time-consuming （70） and administrative chores.
