由副溶血性弧菌中毒食物为
A.肉类
B.海产品
C.蔬菜类
D.菌类
E.谷类
参考答案:B
The postcard has a picture ____________ our school.
[ ]
A. in
B. at
C. of
应将油箱盖与加油管口紧密结合,保持()畅通