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【单选题】
实验中夹闭家兔颈总两侧动脉可引起A.
心率加快，外阻力增大，血压升高
B.
心率加快，外阻力降低，血压升高
C.
心率加快，外阻力降低，血压降低
D.
心率减慢，外阻力降低，血压降低
E.
心率减慢，外阻力升高，血压升高
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举一反三
【简答题】营养液中加入1.5%~2%琼脂制成的培养基称()
【单选题】In classical Greece and Rome, public speaking was studied extensively and played a central role in civic life. ( ) is considered the most important work on this subject.
A.
The Art of Public Speaking
B.
Aristotle's Rhetoric
C.
D e Orator
D.
S horter Logic
【单选题】Compared with 2 million tons last year, our coal output has increased ________ three times； that is to say, our coal output has increased ________ 8 million tons this year. [ ]
A.
to； to
B.
to； by
C.
by； by
D.
by； to
【简答题】简述非发酵菌的初步鉴定特征
【单选题】The Speaker ’ s Corner inside _______ in London is an area where open-air public speaking, debate, and discussion are allowed.
A.
Hyde Park
B.
Yellowstone National Park
C.
Disneyland
D.
Tivoli Gardens
【单选题】Which of the following is rarely the purpose of public speaking?
A.
To influence people' s ideas and behaviour.
B.
To enjoy the satisfaction from one's own speech.
C.
To persuade the audience to accept an idea.
D.
To promote public interest.
【简答题】Learning how to write is like taking a course in public speaking. I ’d ask whether anyone in class had ever taken such a course. Invariably a few hands would go up. “What did you learn in that course?...
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