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【单选题】
Text 2 To paraphrase 18th-century statesman Edmund Burke,“all that is needed for the triumph of a misguided cause is that good people do nothing.”One such cause now seeks to end biomedical research because of the theory that animals have rights ruling out their use in research. Scientists need to respond forcefully to animal rights advocates, whose arguments are confusing the public and thereby threatening advances in health knowledge and care. Leaders of the animal rights movement target biomedical research because it depends on public funding, and few people understand the process of health care research. Hearing allegations of cruelty to animals in research settings, many are perplexed that anyone would deliberately harm an animal. For example, a grandmotherly woman staffing an animal rights booth at a recent street fair was distributing a brochure that encouraged readers not to use anything that opposed immunizations, she wanted to know if vaccines come from animal research. When assured that they do, she replied,“Then I would have to say yes.”Asked what will happen when epidemics return, she said,“Don’t worry, scientists will find some way of using computers.”Such well-meaning people just don's understand. Scientists must communicate their message to the public in a compassionate, understandable way-in human terms, not in the language of molecular biology. We need to make clear the connection between animal research and a grandmother's hip replacement, a father's bypass operation a baby's vaccinations, and even a pet's shots. To those who are unaware that animal research was needed to produce these treatments, as well as new treatments and vaccines, animal research seems wasteful at best and cruel at worst.Much can be done. Scientists could“adopt”middle school classes and present their own research. They should be quick to respond to letters to the editor, lest animal rights misinformation go unchallenged and acquire a deceptive appearance of truth. Research institutions could be opened to tours, to show that laboratory animals receive humane care. Finally, because the ultimate stakeholders are patients, the health research community should actively recruit to its cause not only well-known personalities such as Stephen Cooper, who has made courageous statements about the value of animal research, but all who receive medical treatment. If good people do nothing there is a real possibility that an uninformed citizenry will extinguish the precious embers of medical progress. 第46题:The author begins his article with Edmund Burke/'s words to
A.
call on scientists to take some actions.
B.
criticize the misguided cause of animal rights.
C.
warn of the doom of biomedical research.
D.
show the triumph of the animal rights movement.
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【单选题】芽孢没有繁殖功能,1个营养细胞能形成芽孢
A.
4个
B.
1个
C.
8个
D.
2个
【简答题】分拨中心必备的设备配置有哪些?
【简答题】一个上下文无关文法生成句子abbaa的推导树如下:找出该句子的所有短语,简单短语、句柄。
【多选题】下列有关滴眼剂的叙述正确的是
A.
滴眼剂是直接用于眼部的外用液体制剂
B.
正常眼可耐受一定的pH
C.
滴眼剂应与泪液等渗
D.
可适当添加抑菌剂
E.
增加滴眼剂的黏度,使药物扩散速度减小,不利于药物的吸收
【简答题】一个上下文无关文法生成句子 abbaa 的推导树如课本35页所示: prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> (1) 给出串 abbaa 最左推导、最右推导。 (2) 该文法的产生式集合 P 可能有哪些元素? (3) 找出该句子的所有短语、直接短语、句柄。
【单选题】根据设计的设备或改造设备、机车车辆类型、行车组织方法所计算的通过能力为()
A.
设计通过能力
B.
现有通过能力
C.
需要通过能力
D.
最终通过能力
【判断题】线路的无功损耗和线路长度没有关系
A.
正确
B.
错误
【单选题】下列关于所有者权益的说法不正确的是( )。
A.
所有者权益是指企业资产扣除负债后由所有者享有的剩余权益
B.
所有者权益的金额等于资产减去负债后的余额
C.
所有者权益也称为净资产
D.
所有者权益包括实收资本(或股本)、资本公积、盈余公积和留存收益
【简答题】已知一个上下文无关文法生成的句子 abbaa( 也可写成: a 1 b 1 b 2 a 2 a 3 符号的编号是为了表述方便 ) 的唯一语法树如下图所示,请找出其中的短语、直接短语、句柄,并完成最右推导。 该语法树中,短语包括: ;(第1空) 直接短语包括 : (第2空) 句柄是 : (第3空) (说明:每个空中的多个答案用,隔开, 且只填写答案的阿拉伯数字编号,且要按从小到大的顺序写 ) 1 a...
【简答题】一个上下文无关文法生成句子 abbaa 的推导树如图 2-7 所示。 图2-7 句子 abbaa 的推导树 ( 1 )给出该句子的最左推导和最右推导。 ( 2 )列出该文法产生式集合 P 中可能包含的所有元素。 ( 3 )找出该句子的所有短语、简单短语和句柄。
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