EHEC
参考答案:
肠出血型大肠埃希菌,可产生由噬菌体编码的两种毒素(SLT-I和SLT-Ⅱ),如大肠埃希菌0157∶H7。
The course _______ for introducing multicultural America ranks first in the list of Popularity Courses among students this term.
A.is intended
B.intended
C.having intended
D.intending
声像图表现为“镶嵌样”结构的实性占位性病变一般是指()
A.原发性肝癌
B.肝转移癌
C.肝腺癌
D.肝脂肪癌
E.肝局灶性结节增生