人轮状病毒感染的主要传染源（）
A.隐性感染者
B.感染的动物
C.患者
D.病原携带者
E.接触患者的医务人员
参考答案：A, C
选择shadow或shade并用其适当的形式填空 .
①Sometimes people will get frightened by his own____________ especially at night.
②After a long walk, they needed to find some____________ and have a rest.
收汤
