细菌性痢疾的病原体属于
A．志贺菌属B．沙门菌属C．弧菌属D．弯曲菌属E．螺旋菌属
参考答案：A
．The sweater ________ easily; isn't it suitable for a person as lazy as you?
A．is washed
B．was washed
C．washes
D．has washed
我国领土南北纬度相差约_________度，我国东西经度相差约________度。
