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【单选题】
下列哪种动物长期内服四环素类药物易引起二重感染或消化机能障碍? ( )A.
反刍动物
B.
猪
C.
家禽
D.
犬
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反馈参考答案：
举一反三
【单选题】体温持续在 39--40 °C 以上,数天或数周, 24 小时以内波动范围不超过 1 °C ,称之为
A.
弛张热
B.
间歇热
C.
回归热
D.
稽留热
E.
波状热
【单选题】That many subjects taught at British colleges are useless is mainly owing to ______.
A.
their falling short of the demands of economy
B.
their validity as a discipline being untestified
C.
their failure to meet the standards of university instruction
D.
their inability to arouse the interest of students
【单选题】If you have unsupportive teachers, it is important ,first of all, to ______.
A.
correct their negative image of you
B.
change to another school and find supportive teachers
C.
ask them to point out your shortcomings .....
D.
give it due attention and find a correct picture of you
【单选题】______ new employee feels insecure during ______ first few weeks on the job.
A.
Many ...their
B.
Many...his or her
C.
Many a ...their
D.
Many a...his or her
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