某公司拟向银行借入短期借款50000元：（1）如采用贴现法偿付利息，利息率为8%，如采用补偿性余额（比例为10%）法，利息率为6％，该公司应选择哪种方式？（2）假设公司与银行商定的周转授信额度为100000元，承诺费率为0.8%，则公司应向银行支付多少承诺费？（3）若采用补偿性余额法借入款项，公司实际需要使用的资金是60 000元，则公司应向银行借款的金额是多少？（4）公司采用补偿性余额法借款是为了支付货款，如若此时卖方提供的信用条件为“2/10，N/30”，那么，公司是否应当通过借款的方式支付货款？
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Escherichia coli
A. inhabits the large intestine and feces of most individuals.
B. is the major cause of primary atypical pneumonia.
C. consists of acid-fast, fungus like rods.
D. grows well and survives in soil and aquatic environments.
Infantile diarrhea and traveller‘s diarrhea are commonly caused by
A. Escherichia coli
B. Treponema pallidum
Clostridium botulinum
D. Listeria monocytogenes
E.coli cause disease by different ways. Which one of the following E.coli serotypes is characterized by the presence of ST (heat stable) and LT (heat liable) proteins?
A. Enteroinvasive E.coli (EIEC)
B. Enterotoxigenic E.coli (ETEC)
C. Enterohemorrhagic E.coli (EHEC)
D. Enteropathogenic E.coli (EPEC)
E. coli O157: H7 is a newsworthy microorganism that has been isolated from foods (meat) and beverages (cider) with increasing frequency. Which of the following statements best describes its characteristic biology?
A. It secretes erythrogenic toxin that causes the characteristic signs of scarlet fever.
B. It produces toxin that blocks protein synthesis in an infected cell and carries a lytic bacteriophage that produces the genetic information for toxin production.
C. It produces at least one protein toxin consisting of two subunits, A and B, which cause severe spasmodic cough usually in children.
D. It secretes exotoxin that has been called“verotoxin”and Shiga-like toxin”; infection is mediated by specific attachment to mucosal membranes.
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