When collecting condensation for drinking water，______．
A.A sponge used to mop up and store condensation must be kept salt free
B.Only condensation on the bottom of the canopy should be collected
C.It should be strained through a finely woven cloth
D.Chlorine tablets should be used to make it drinkable
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更多“When collecting condensation f…”相关的问题
第1题
Harry was ________ by a bee when he was collecting the honey.
A) stung B) stuck C) bitten D) scratched
第3题
A. It produces less accurate results of the comparison analysis.
B. It automatically calls the SQL Tuning Advisor for recommendations.
C. It shortens the time of execution and reduces the impact on system resources.
D. Only the changes in the execution plan, and not performance regression, are detected.
第4题
A. It produces less accurate results of the comparison analysis.
B. It automatically calls the SQL Tuning Advisor for recommendations.
C. It shortens the time of execution and reduces the impact on system resources.
D. Only the changes in the execution plan, and not performance regression, are detected.
第5题
Passage Four
Three women who secretly buried an 80-year-old woman were put into prison at Birmingham yester day. Two of them, including the dead woman's daughter, kept on collecting her pension (退休金) after her death until their secret was made known to others two years later. The court (法庭) heard that one of the women put on "an Oscar (奥斯卡金奖)—winning performance" by pretending to be the old woman asleep in bed when a social worker called five mouths after Mrs. Townsend's death.
48. Of the three women that buried Mrs. Townsend secretly, one was ______.
A. her neighbor
B. her nurse
C. a social worker
D. her daughter
第6题
阅读理解：阅读下面的短文，根据文章内容进行判断，正确写“T”错误写“F”。
QUESTIONNAIRESA、ADVANTAGES & DISADVANTAGES
Every coin has two sides and questionnaires are no different. With questionnaires, the advantages outweigh the disadvantages.
ADVANTAGES OF QUESTIONNAIRES
Compared to face-to-face interviews, questionnaires are cheaper for
collecting data from a large number of respondents. Also, questionnaires are easy to analyze, and computer software can easily complete data entry and make tables for nearly all surveys. Questionnaires are familiar to most people as nearly everyone has had some experience completing one. Questionnaires reduce bias when there are no clues to affect the respondents.
DISADVANTAGES OF QUESTIONNAIRES
One main disadvantage of questionnaires is the possibility of low response rates which reduces our confidence in the results. Another disadvantage is they provide little flexibility for the respondents. What’s more, many times the respondent is not the same person you sent the
questionnaire to. Finally, questionnaires are not suitable for some people. For example, a survey to a group of poorly educated people might not work because of reading problems.
1. The advantages of questionnaire are more than disadvantages.{T、F}
2. Questionnaire is the cheapest way for collecting data from respondents.{T、F}
3. Questionnaires have the advantage of being analyzed easily through the computer software.{T、F}
4. Questionnaire is suitable for everyone.{T、F}
5. The respondent is usually the same person you sent the questionnaire to.{T、F}
第7题
My mother didn't use to work during the week , but she worked in the post office near our house on Saturdays , and she used to bring home all the new stamps as soon as they were issued. On the day of the World Cup football final in London in 1966 , we were very excited because England were playing West Germany in the final. When we were having lunch, my mother told us to go to the post office straightaway after the match if England won , but she didn't tell us why. At 2 0' clock my mother went back to work as usual , while the rest of the family were watching the football on TV at home. Although she wasn't watching the match , she was listening to it on the radio. England won 4: 2 and so my brothers and l ran to the post office. As we burst in , my mother was standing behind the counter. She was waiting to sell us a very special limited edition with ENGLAND WINNERS on each stamp. We were over the moon. We still have it today , and perhaps it is worth a l0t of money.
26. This passage mainly tells us_______.
A. the author and her brother used to like stamps very much
B. the author had a very kind mother
C. the author and her brother had got an unforgettable experience in collecting stamps
27. According to the passage , her mother worked in the post office_______.
A. during the week
B. on Saturdays
C. on Sundays
28. Their mother told them to go to the post office straightaway after the match if England won, but she didn't tell us why. Do you think why she did that？
A. She wanted to give them a surprise.
B. She doubted if she would get the stamps.
C. She forgot to do that.
29. What does the sentence "We were over the moon. " mean？
A. We jumped high.
B. We were extremely happy about it.
C. We watched the moon for a long time.
30. What is the best title for this passage？
A. My Childhood
B. A Precious Stamp
C. A Memorable Experience in Collecting Stamps
第8题
【C1】
A．how
B．where
C．when
D．whether
第9题
The answer is that I have always been interested in animals and zoos. According to my parents, the first word I was able to say with any【C3】______was not the conventional “mamma” or “daddy”,【C4】______the word “zoo”, which I would【C5】______over and over again with a shrill【C6】______until someone, in group to【C7】______me up, would take me to the zoo. When I
【C8】______a little older, we lived in Greece and I had a great【C9】______of pets, ranging from owls to seahorses, and I spent all my spare time【C10】______the countryside in search of fresh specimens to【C11】______to my collection of pets.【C12】______on I went for a year to the City Zoo, as a student【C13】______, to get experience of the large animals, such as lions, bears, bison and ostriches,【C14】______were not easy to keep at home. When I left, I【C15】______had enough money of my own to be able to【C16】______my first trip and I have been going【C17】______ever since then. Though a collector's job is not an easy one and is full of【C18】______, it is certainly a job which will appeal【C19】______all those who love animals and【C20】______.
【C1】
A．how
B．where
C．when
D．whether
第10题
设A，B为任意非奇异矩阵，证明： (1)Cond(A)≥1； (2)Cond(AB)≤Cond(A)Cond(B)。
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