蛲虫病的主要特征是（）
A.夜间肛门奇痒
B.尿频、遗尿
C.食欲不振
D.大便不调
E.面部白斑
参考答案：A
The doctor _____ the man and found nothing serious with him. [ ]
A. looked after
B. looked for
C. looked at
D. looked over
第三方物流(TPL)是由与货物有关的发货人和收货人之外的专业企业来承担物流活动。（）
