为排除行人过街对汽车交通的干扰及保证行人过街安全，常采用的手段有束流和（）。
A.单行
B.分离
C.禁行
D.单双号行驶
参考答案：B
Woman: Excuse me, but could you tell me where I can change American dollars into British poundsMan: There’s a bank around the corner. But I am afraid it’s already past its closing time. Why don’t you try the one near the railway stationQuestion: What does the man mean
A．The woman should try her luck in the bank nearby.
B．The bank around the corner is not open today.
C．The woman should use dollars instead of pounds.
D．The bank near the railway station closes late.
由大肠埃希菌导致的最常见的肠外感染是
A．烧伤创面感染B．肺炎C．泌尿系统感染D．败血症E．腹膜炎
