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【多选题】
线性系统稳定的充分必要条件是A.
特征根在 s 左半平面
B.
特征根在虚轴上
C.
特征根具有正实部
D.
特征根具有负实部
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【简答题】归纳总结具有泻下中作用的生药有哪些,并描述其生药的基源,性状特征,如何对泻下作用的主成分进行鉴别
【单选题】How much would it cost for one person to have garlic bread, a cup of onion soup, and a soft drink?
A.
$5.50
B.
$6.25
C.
$11.95
D.
$23.20
【简答题】In a lottery a person may win a million dollars or more. What would be the advantages of winning a million dollars'? Would there be disadvantages? You should write a composition of no fewer than 120 w...
【单选题】听力原文：Would you prefer to talk about it on the phone or meet in person? (A) Sure, that would be okay with me. (B) Just you and me ought to be enough. (C) I think we can handle this over the phone. (34)
A.
B.
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