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【判断题】
罗马著名学者老普林尼在《自然史》上曾描述中国丝绸是来源于树叶。A.
正确
B.
错误
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举一反三
【简答题】灰化土最大的特点是具有灰化淀积层，灰化土的植被以（）为主。
【单选题】The regulating element which can give rapid and advanced adjustment is ______. A. B. integral regulating C. D.
A.
proportional regulating
B.
integral regulating
C.
differential regulating
D.
adaptive regulating
【单选题】The regulating element which can give rapid and advanced adjustment is ____?
A.
Proportional regulating
B.
Differential regulating
C.
Integral regulating
D.
Adaptive regulating
【简答题】A．regulates B．regulate C．regulated D．regulating
【单选题】The regulating element which can give rapid and advanced adjustment is ______.
A.
proportional regulating
B.
integral regulating
C.
differential regulating
D.
adaptive regulating
【单选题】The regulating element which can give rapid and advanced adjustment is ______.
A.
proportional regulating
B.
integral regulating
C.
differential regulating
D.
adaptive regulating
【简答题】A．regulates B．regulate C．regulated D．regulating
【简答题】灰化土最大的特点是具有（）。
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