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【判断题】
液压传动的两个工作特性是:压力决定于负载;速度决定于流量。A.
正确
B.
错误
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举一反三
【简答题】biotechnology
【简答题】There was a lot of people standing at the door and the small girl couldn't get . [ ] A between B. through C. across D. beyond
【单选题】With the emergence of biotechnology companies, it was feared that they would impose silence about proprietary results on their in-house researchers and their academic consultants. This constraint, in ...
A.
Biotechnological research funded by industry has reached some conclusions that are of major scientific importance.
B.
When the results of scientific research are kept secret, independent researchers are unable to build on those results.
C.
Since the research priorities of biotechnology companies are not the same as those of academic institutions, the financial support of research by such companies distorts the research agenda.
D.
To enhance the companies' standing in the scientific community, the biotechnology companies encourage employees to publish their results, especially results that are important.
E.
Biotechnology companies devote some of their research resources to problems that are of fundamental scientific importance and that are not expected to produce immediate practical applications.
【单选题】We can communicate people in every part of the world the Internet．
A.
with; with
B.
with; through
C.
through; through
D.
through; with
【单选题】As an industry, biotechnology stands to ______ electronics in dollar volume and perhaps surpass it in social impact by 2020.
A.
contend
B.
contest
C.
rival
D.
strive
【简答题】环境生物技术(environmental biotechnology，EBT)
【单选题】Where can people buy Rev Up?
A.
In restaurants
B.
At supermarkets
C.
Only on the Internet
D.
Throughout the rural area
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