在无竞争的scrum中,球队可以争球。
参考答案:错
The policeman asked the child _____ so that he could take him home. [ ]
A. where did he live
B. where he lived
C. how he lived
流行性脑脊髓膜炎的主要传染途径是()
A.飞沫传播
B.食物传播
C.虫媒传播
D.注射传播
E.疫水传播