根据格拉布斯统计量的分布，计算出标准化顺序统计量g，在指定的显著性水平β下，确定判别可疑值的临界值g0(β，n)，其可疑值舍弃的判别标准为( )。
A．g≥g0(β，
B．g＞g0(β，
C．g≤g0(β，
D．g＜g0(β，
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2007年1月22日，国务院的《中 * * 国务院关于全面加强_______统筹解决人口问题的决定》公布。[ ]
A．经济生活
B．农业工作
C．人口和计划生育工作
D．农业和人口工作
阅读理解。
Last year my sixth-grader daughter, Elizabeth, was forced to put up with science. Her education week after
week, contained mindless memorization of big words like "batholith" and "saprophyte" She learned by heart the
achievements of famous scientists who did things like "improved nuclear fu-sion (核聚变)"-never mind that
she hasn't the least idea of what nuclear fusion means. Eliza-beth did very well (she's good at memorizing things ). And now she hates science. My eighth-grad-er son,Ben,also suffered from science education. Week after
week he had to perform lab experiments with answers already known.Ben figured out how to guess the right
answers, so he got good grades. Now he hates science, too.
Science can provide an exciting way to develop children's curiosity. Science education should teach ways
to ask questions and week answers. But my children got the mistaken idea in school than science is difficult
dull and has no relation to their everyday interests.
As a physicist, I am saddened and angered to see "the great science turnoff" I know that science is
important in our lives.Yet studies prove that our schools are turning out millions of graduates who know
almost nothing about and have almost no interest in science. What's gone wrong? Who is to blame?
1. We learn from paragraph 1 that _____.
A. the writer was proud of Elizabeth and Ben
B. both Elizabeth and Ben could become scientists
C. Elizabeth had to learn much about great scientists
D. Ben was good at trying new ideas in lab experiments
2. The writer thinks that in science education we should first _____.
A. get students interested in the subject
B. answer students' questions in delightful ways.
C. smooth out difficulties in lab experiments
D. explain the special terms clearly
3. By writing the text,the author questions _____.
A. the difficulty level of the science texts
B. the way science is taught in school
C. the achievements of famous scientists
D. students' poor records in science classes
药材川木通的表面特征是（）
A.表面黄棕色或黄褐色，有纵向凹沟及棱线，节多膨大
B.表面灰褐色，有地衣斑
C.表面棕黄色，有多数点状皮孔
D.表面灰黄色，有横向皮孔
E.表面浅灰棕色，光滑，栓皮易鳞片状剥落
直接报酬
SET是为了在互联网上进行在线交易时保证（）的安全而设立的一个开放的规范.
A.信用卡支付
B.物流信息
C.点对点的网上银行业务
D.商业系统信息