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【单选题】
关于增强子作用特点的描述,正确的是
A.
只能近距离作用
B.
有基因特异性
C.
是顺式作用元件
D.
无种属或组织特异性
E.
不与反式作用因子结合也能发挥作用
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【单选题】Men have distinguished themselves from other animals, and in doing so secured their survival by the ability to observe and understand their environment and then either to adapt to that environment or ...
A.
adapt to their environment
B.
control their environment
C.
adapt the environment to their need
D.
observe and understand their environment
【判断题】会计职业道德对社会经济秩序没有影响。 ( )
A.
正确
B.
错误
【多选题】WHO、OIE.和我国对狂犬病的诊断的三个必要程序是( )
A.
病毒分离培养
B.
内基氏小体检查
C.
荧光抗体试验
D.
小鼠感染实验
【单选题】The explorers______despite the food shortage and harsh weather.
A.
outlived
B.
endured
C.
survived
D.
subsisted
【单选题】Julien and Steve seem to suggest that
A.
eBay should further cooperate with Google to survive.
B.
eBay should form. an alliance with Yahoo! or Microsoft.
C.
Google is making smaller revenues than eBay.
D.
Google's core business has already shrank by 3%.
【判断题】会计职业道德对社会经济秩序没有影响
A.
正确
B.
错误
【单选题】数据通信方式中,允许双向传输,但一个时刻只允许一个方向传输的是 ( )
A.
单工
B.
半双工
C.
全双工
D.
以上均不是
【单选题】Since the routine use of antibiotics can give rise to resistant bacteria capable of surviving antibiotic environments, the presence of resistant bacteria in people could be due to the human use of pre...
A.
Antibiotics are routinely included in livestock feed so that livestock producers can increase the rate of growth of their animals.
B.
Most people who develop food poisoning from bacterially infected meat are treated with prescription antibiotics.
C.
The incidence of resistant bacteria in people has tended to be much higher in urban areas than in rural areas where meat is of comparable quality.
D.
People who have never taken prescription antibiotics are those least likely to develop resistant bacteria.
E.
Livestock producers claim that resistant bacteria in animals cannot be transmitted to people through infected meat.
【单选题】数据通信方式中,允许双向传输,但一个时刻只允许一个方向传输的是()
A.
全双工
B.
半双工
C.
单工
D.
自动
【单选题】What can be inferred about surviving anaphylaxis?
A.
It is impossible for children to survive anaphylaxis.
B.
Only a few people have ever survived anaphylaxis.
C.
Survival depends on immediate medical treatment.
D.
The professor knows someone who survived the disease.
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