--Excuse me. Can you tell me      I can get to the post office?

-- Take the subway.

A．how

B．what

C．when

D．Where

下列哪一种食物中毒可呈阵发性腹部绞痛，大便呈洗肉水样（）

A.沙门氏菌食物中毒

B.变形杆菌食物中毒

C.嗜盐菌食物中毒

D.葡萄球菌食物中毒

E.肉毒杆菌食物中毒