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【简答题】
2013年9月20日是第25个全国爱牙日。某区卫生部门成立了调查小组，调查 “常吃零食与患龋齿的关系”，对该级800名学生进行检查，按患龋齿和不患龋齿分类，得汇总数据：不常吃零食且不患龋齿的学生有60名，常吃零食但不患龋齿的学生有100名，不常吃零食但患龋齿的学生有140名. （1）能否在犯错概率不超过0.001的前提下，认为该区学生的常吃零食与患龋齿有关系？ （2）4名区卫生部门的工作人员随机分成两组，每组2人，一组负责数据收集，另一组负责数据处理.求工作人员甲分到负责收集数据组，工作人员乙分到负责数据处理组的概率. 0.010 0.005 0.001 6.635 7.879 10.828 附：
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【简答题】calle
【单选题】______ is widely used in international trade. It combine the features of both the indented style and the blocked style. The letterhead is in the middle. The first line of a paragraph is lined up the l...
A.
The international style
B.
The indented style
C.
The blocked style
D.
The semi-blocked style
【单选题】The mistake on the locally printed postage stamps was in the ______.
A.
spelling of postage
B.
use of words
C.
price
D.
color
【单选题】'Tie the knot' in the first line of the first paragraph means____.
A.
getting acquainted with each other
B.
dating each other
C.
living together before marriage
D.
getting married
【简答题】The mistake on the locally printed postage stamps was in the ______. B) colour C) carelessness D) inscription
【简答题】The mistakes on the locally printed postage stamps was in the____________．
【单选题】The mistake in the locally printed postage stamps was in the ______.
A.
spelling of postage
B.
price
C.
wording
D.
color
【单选题】What does the author mean when he mention $quotWhat does the author mean when he mention 'context' in the first line of paragraph 6? A．the environment where someone get to know something
B.
discourse that surrounds a language unit and helps to determine its interpretation
C.
the surroundings of a building
D.
the atmosphere of a class ' in the first line of paragraph 6?A．the
【单选题】The mistake on the locally printed stamps was in the ______.
A.
spelling
B.
wording
C.
price
D.
colour
【单选题】What does the metaphor of the “realms of gold” imply in the first line of this poem?
A.
All the three answers mentioned above.
B.
The poet as a searcher of gold, who has traveled in his imagination to many lands of poetry.
C.
The poet as a literary adventurer.
D.
The realms of great books.
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