下列含有O157:H7这一血清型的大肠埃希菌为
A．ETEC
B．EHEC
C．EIEC
D．EPEC
E．EAggEC
参考答案：B
Pass me the glasses please. I can _____ read the words in the newspaper.[ ]
A. hardly
B. really
C. clearly
计算：﹣4﹣2=（ ）。
