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【简答题】
在图3．5．5所示电路中，已知VT1一VT3管的特性完全相同，β≥2。反相输入端的输入电流为i11,同相输入端的输入电流为i12。试分析如下关系： (1)iC2≈? (2)iB3≈? (3)Avi=vo／(i11一i12)≈?
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皮皮学刷刷变学霸
举一反三
【单选题】The Wales' artificial mountain collapsed because
A.
the mountain is artificial
B.
the waste materials are piled up too much on the top of the mountain
C.
the flood rushed over the waste materials
D.
the mountain received an overwhelming amount of snow
【简答题】共线方程表达的是 、 与 之间关系。
【单选题】Mountain Climbing Mountain climbing, or ascending mountains, is popular worldwide, wherever hills rise high enough to provide a challenge. The activitys rewards include the physical exercise it provid...
A.
He produced and sold books written by Maria Edgeworth.
B.
He had more influence on American children's literature than any other publisher,
C.
He published books aimed amusing children rather than instructing them.
D.
He was commercially minded and cheerful.
【多选题】关于腺垂体功能减退症的治疗，下列哪些是正确的（）
A.
糖皮质激素的补充为最重要的治疗，全量补充为每日皮质醇30mg，上午8时服2／3，下午2时服1／3
B.
补充甲状腺素从大剂量开始，且应先于糖皮质激素补给
C.
育龄女性病情轻者可采用人工月经周期治疗
D.
男性可以丙酸睾丸酮每周2次肌肉注射改善性功能
E.
育龄男、女性患者可试用HCG、HMG或LRH促进生育
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