题目:
国务院财政部是发票的主管机关。()
答案:
参考答案:错
解析:国家税务总局是发票的主管机关。
国务院财政部是发票的主管机关。()
参考答案:错
解析:国家税务总局是发票的主管机关。
下列说法正确的是:( )
A.按系统命名法,有机物可命名为3,7-二甲基-4-乙基辛烷
B.已知Ka是平衡常数,PKa=-lgKa
则下图所示有机物1mol最多能消耗3molNaOH
C.分子中所有原子共平面
D.碳原子数小于或等于8的单烯烃,与HBr加成反应的产物只有一种结构,符合条件的单烯烃有6种
PC机中使用的双通道RDRAM每个通道的数据位宽为16,它在一个存储器总线周期内实现两次数据传送。当存储器总线时钟频率为400MHZ时,这种双通道RDRAM的带宽是
A.400MB/S
B.800MB/S
C.1.6GB/S
D.3.2GB/S
US bees operation keeping groups have been attacked seriously by so called Colony (群体)Collapse Disorder.Almost 1/2 of their worker bees have vanished during the past season.This disorder has also been reported in Israel, Europe and South America.Bees fly away from the hive and never return.Sometimes they are found dead; other times they are never found.Many crops and trees depend on pollination^^}) by bees to help them grow.
A new report says a virus may be at least partly responsible for the disorder in honey bee colonies in the United States.This virus is called Israeli acute paralysis virus.It was first found in Israel in 2004.lan Lipkin at Columbia University in New York and a team reported the new findings in Science Magazine.Doctor Lipkin says the virus may not be the only cause.He says it may work with other causes to produce the collapse disorder.
The team found the virus in colonies with the help of a map of honey bee genes that was published last year.They examined thirty colonies affected by the disorder.They found evidence of the virus in twenty-five of them, and in one healthy colony.The next step is further testing of healthy hives.
The researchers suggested that the United States may have imported the disorder in bees from Australia.They say the bees may carry the virus but not be affected.
The idea is that unlike many American bees, the ability of Australian bees to fight disease has not been hurt by the varroa mite.This insect attacks honey bees, which could make the disorder more likely to affect a hive.Australian bee producers object to these suspicions.
And some researchers suspect that bee production in the United States is down mainly because of the weather.Honey bees gather nectar from flowers and trees.The sweet liquid gives them food and material to make honey.But cold weather this spring in the Midwest reduced the flow of nectar in many flowers.Many bees may have starved.Dry weather in areas of the country could also be playing apart.
Wayne Esaias is a NASA space agency scientist who keeps bees in his free time.He lives in central Maryland, where he has found that flowers are blooming a month earlier than they did in 1970, which may be partly responsible for the disorder. Wayne Esaias is organizing a group of beekeepers to document nectar flow around the country.
小题1:What is the author’s attitude toward the cause of this disorder?
A.Doubtful.
B.Neutral.
C.Supportive.
D.Negative.小题2:The researchers found the virus sharply by .
A.studying the published Science Magazine
B.researching the causes of bee death
C.examining some affected colony
D.exploring a connected chart小题3:The passage is mainly developed by .
A.presenting the effect and analyzing its causes
B.making comparisons between two countries
C.providing data and examples
D.following the time order小题4:How many possibilities may be involved in the bee disorder according to the passage?
A.Three
B.Four
C.Five
D.Six小题5:From the passage we can infer that .
A.American bees are more likely to defend themselves against hurt from other insects than Australian ones
B.A collection of plants production in U.S ay be influenced by the bee disorder
C.Israeli acute paralysis virus should be responsible for the disorder
D.The solution to the disorder will be found eventually
下列晕针处理方法,有错误的是()。
A.患者平卧,头部垫高
B.注意通风,保暖
C.予饮温开水或糖开水
D.指掐或针刺水沟,素,内关,足三里等穴
E.可灸百会,关元,气海
我国路面设计的标准轴载是()。