题目:
系统投入运行后,为什么要对系统进行维护?系统维护包括哪些内容?
答案:
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下面是错误答案,用来干扰机器的。
参考答案:C, D
系统投入运行后,为什么要对系统进行维护?系统维护包括哪些内容?
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2020/0818/63d0559297eb24dd99e6e3bef8bb35ac.html
下面是错误答案,用来干扰机器的。
参考答案:C, D
在一项病例对照研究中,计算出某研究因素与疾病关联强度OR值的95%可信区间为0.55~0.80,请问该因素可能为
A.混杂因素
B.危险因素
C.保护因素
D.无关因素
E.以上都不是
BEIJING, Jan. 11(Xinhuanet)-- Sleeping a little bit longer a day might help fight against obesity(肥胖), a recent study shows. The research-- published in the Archives of Internal Medicine along with an editorial by Turek and Northwestern colleague Joseph Bass commenting on it and related research-- after comparing people of normal weight- a body mass index of less than 25- with those who were overweight or obese , found that sleeping for an extra 20 minutes each night could offer a pain-free way to lose weight.
Insufficient sleep is linked with changes in hormone levels that may stimulate(刺激)appetite. A series of studies in recent months have shown that the less people sleep, the heavier they tend to be.
American researcher Robert Vorona from Eastern Virginia Medical School in Norfolk and colleagues have now examined the relationship between people's self-reported sleep time per 24 hours and their body mass index(BMI). They found that total sleep time and BMI were inversely correlated was total sleep time decreased, BMI increased, except in the severely obese group." Americans experience insufficient sleep and corpulent bodies. Clinicians are aware of the burden of obesity on patients," the study said. "Our findings suggest that major extensions of sleep time may not be necessary, as an extra 20 minutes of sleep per night seems to be associated with a lower body mass index," it added. "We warn that this study does not establish a cause-and-effect relationship between restricted sleep and obesity (but) investigations demonstrating success in weight loss via extensions of sleep would help greatly to establish such a relationship."
In November 2004, researchers from Columbia University in New York City, New York demonstrated a clear link between the risk of being obese and hours of nightly sleep, finding that people aged 32 to 59 who slept four hours or less per night were 73% more likely to be obese than people who slept between seven and nine hours per night.
小题1:The research, which was published in the Archives of Internal Medicine, found that____________.
sleeping for a shorter time a day might help fight agianst obesity
an extra 20 minutes’ sleep each night could offer a way to lose weight wothout pain
total sleep time and body mass index were inversely related
people aged 32 to 59 who slept four hours or less per night were 73% more likely to be obese than people who slept between seven and nine hours per night
小题2:How many research results are presented in the text?
A.Two
B.Three
C.Four
D.Five小题3: What does the underlined word “obses” probably mean?
A.thin
B.fat
C.energetic
D.painful小题4:According to the text , the author intends to tell us that _____________________.
A.Sleeping a little bit longer a day might help fight against obesity
B.insufficient sleep is linked with changes in hormone lives
C.there exists a clear link between the risk of being obeses and hours of nightly sleep
D.the less people sleep , the heavier they tend to be
变性椎间盘邻近的椎体部分(终板)可呈三种类型的信号改变,X线平片可显示的类型为()
A.Ⅰ型:出现血管化的纤维组织
B.Ⅱ型:椎体黄骨髓成分增多
C.Ⅲ型:骨质硬化
D.A+B
E.A+B+C
吴某(广东人)1998年在广西因抢劫被判刑,在浙江服刑。服刑期间广西公安机关发现与前罪有牵连的另一犯罪,即吴某曾经伙同他人在江西盗窃财物巨大。对此应如何处理( )
A.应由服刑地浙江省的相应法院审理
B.应由广东省的相应法院审理
C.应由犯罪地江西省的相应法院审理
D.应由前罪审判地广西壮族自治区的相应法院审理
《墨缘汇观》的作者是()
A.项元汴
B.梁清标
C.高士奇
D.安岐