【简答题】Fill in at least one blank for each word. 1. Characteristic: t___________, q___________, f___________ 2. Role: p___________ 3. Male: (of) m___________ or b___________ 4. Behavior: a___________, c_____...
【简答题】Passage 1 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> Culture is one of the most challenging elements of the international marketplace. This system of learned behavior patt...
【单选题】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 characteris...
A.
It produces toxin that blocks protein synthesis in an infected cell and carries a lytic bacteriophage that produces the genetic information for toxin production.
B.
It produces at least one protein toxin consisting of two subunits, A and B, which cause severe spasmodic cough usually in children.
C.
It secretes erythrogenic toxin that causes the characteristic signs of scarlet fever.
D.
It secretes exotoxin that has been called "verotoxin" and "Shiga-like toxin"; infection is mediated by specific attachment to mucosal membranes.
【简答题】Write a composition of no less than 120 words with a general statement supported by details on one of the following topics. One topic has been given a detailed outline that you can follow. General sta...