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单位和个人检举违反《会计法》和国家统一的会计制度的行为，也属会计工作社会监督。 ()
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You are the network administrator for Ezonexam.com.
You are planning to install 10 new Windows 2000 Server computers. Ezonexam has a tight production schedule that requires no changes be made to the Active Directory except during scheduled outages. You schedule the installations during an upcoming network outage which will occur betweenmidnight and 8:00 A.M.
You want to complete the installations before production begins in the morning.
What should you do？
下图所示的职能组织结构中，A、B1、B2、B3、C1、C2等分别代表不同的工作部门或主管人员。这个组织结构表明()。
Drug-vaccine therapy may be lifesaver for Deerfield man. Few people survive advanced melanoma, but immune therapy is giving Deerfield resident Douglas Parker a fighting chance. The 46-year-old salesman noticed a mole on his chest three and a half years ago that was found to be cancerous. Doctors removed the mole but didn't get all of the cancer. The cancer spread to other parts of his body, including his liver, where a tumor grew as large as a baseball. Parker took interferon and interleukin-2 to boost his immune system's ability to fight the cancer. The tumor shrank but didn't disappear. In au- gust, 1997, surgeons removed it, along with two-thirds of his liver. Last January, doctors discovered a new tumor on Parker's left adrenal gland(肾上腺). He received an ex- perimenta1 cancer vaccine at the University of Chicago Hospitals, but the vaccine did n' t stop the cancer from spreading to his right adrenal gland.
To augment the vaccine, doctors at Lutheran General Hospital gave Parker a new round of interleukin-2 and interferon. The drug-vaccine combination has shrunk the tumors. And while it's too early to pronounce Parker cured, immune therapy may save his life. "I want to do this to help myself as well as other people who have melanoma," he said.
Immune therapy "ultimately will be a significant change in the way we treat a lot of different cancers," said Dr. Jon Richards of Lutheran General Hospital in Park Ridge, who is testing cancer vaccine on melanoma patients. "It will be an equal partner with the other three treatments in the next five to ten years." Several drugs that bolster the immune system have been approved, and vaccines are being tested in dozens of clinical trials, including several in the Chicago area.Many of the experimental vaccines have been tested on patients with advanced melanoma who have little chance of surviving with conventional treatments alone. Researchers also have begun doing work that could lead to vaccines to treat prostate, lung, colon and other cancers.
Immune therapy alone won't cure cancer. But when used after conventional treatments, it could kill cancer cells that survive surgery, radiation or chemotherapy, re- searchers said.Some day, vaccines also might be able to prevent certain cancers. It may be possible to vaccinate against viruses and bacteria that help cause cervical, liver and stomach cancer, the National cancer Institute said.
The "fourth weapon" cures cancer by______.
A Biological Clock
Every living thing has what scientists call a biological clock that controls behavior. The biological clock(1)plants when to form. flowers and when the flowers should open. It tells insects when to(2)the protective cocoon (防护卵袋) and fly away, and it tells animals and human beings when to eat, sleep and wake.
Events outside the plant and animals(3)the action of some biological clocks. Scientists recently found, for example, that a tiny animal changes the color of its fur because of the(4)of hours of daylight. In the short(5)of winter, its fur becomes white. The fur becomes gray brown in(6)in the longer hours of daylight in summer.
Inner signals control other(7)clocks. German scientists found that some kind of internal clock seems to order birds to begin their long migration(8)twice each year, Birds(9)from flying become restless when it is time for the trip,(10)they become calm again when the time of the flight has ended.
Scientists say they are beginning to learn which(11)of the brain contain biological clocks. An American researcher, Martin Moorhead, said a small group of cells near the front of the brain(12)to control the timing of some of our actions. These(13)tell a person when to wake, when to(14), and when to seek food. Scientists say there probably are other biological clock cells that(15)other body activities.
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