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【单选题】
能致猪呼吸道症状，并称为猪肺疫的病原（）A.
支原体
B.
猪链球菌2型
C.
副猪嗜血杆菌
D.
多杀性巴氏杆菌
E.
胸膜肺炎放线杆菌
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反馈参考答案：
举一反三
【简答题】HW #1 1.1 Summarize the evidence that led to the introduction of quantum mechanics. 【 】 1.2 Calculate the size of the quantum involved in the excitation of (a) an electronic oscillation of period 1.0 ...
【简答题】The so-called Lyman series of lines in the emission spectrum of hydrogen corresponds to transitions from various excited states to the n = 1 orbit. Calculate the wavelength of the lowest-energy line i...
【单选题】The pH inside endosomes is about 5.0, and the pH in the cytosol is about 7.0. Calculate the amount of free energy needed to maintain this acidity difference at 37°C. Ignore the effects of the transmem...
A.
10.9 kJ/mol
B.
11.9 kJ/mol
C.
12.9 kJ/mol
D.
13.9 kJ/mol
【简答题】Calculate the energy available of per serving-sized food product based on the nutrition label
【单选题】Which process could be used to calculate the bond energy for the covalent bond X-Y by dividing its ∆H by n?
A.
XYn(g) → X(g) + nY(g)
B.
2XYn (g) → 2XYn-1(g) + Y2(g)
C.
Y(g) + XYn-1(g) → XYn(g)
D.
nXY(g) → nX(g) + 2n Y2(g)
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