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【单选题】
热力学第一定律的数学表达式是( )。
A.
U = Q + W
B.
U= H- pV
C.
ΔU = Q + W
D.
ΔU = Q + H
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举一反三
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【单选题】宗教是一个建立在()背景之下的哲学体系。
A.
唯物主义
B.
唯心主义
C.
形而上学
D.
形式主义
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A.
in
B.
on
C.
of
D.
to
【单选题】How do you show your interest in the job when your interview is about to be put an end?
A.
Raise questions about the employer or job.
B.
Express your thanks to the interviewer(s).
C.
Try to establish contact with the interviewer(s).
D.
Restate your interest to the interviewer(s).
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A.
正确
B.
错误
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A.
2r≥k+r
B.
2r≥k+r+1
C.
2k≥k+r+1
D.
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A.
直根系
B.
网状脉
C.
茎有木本、草本;维管束具有形成层
D.
三基数花, 花粉粒具有单纹孔
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A.
变形虫可进行胞饮作用
B.
原生动物也有有性生殖的方式,主要是接合生殖和配子生殖
C.
原生动物的分裂生殖的细胞分裂方式是无丝分裂
D.
原生动物的寄生种类行渗透性营养
【多选题】I'm not used to seeing you acting so shy. You're usually so outgoing and friendly. Don't be afraid to show your true colours. The phrase “show your true colours” here means______.
A.
to be how you truly are
B.
to show your favorite colours
C.
to just be your normal self
D.
to show your body figure
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