A.By doing experiments |
B.By examining global airline travel patterns |
C.By setting up a model |
D.By collecting the data of the cases |
A.decreased | B.increased |
C.avoided | D.predicted |
A.it is easy to identify imported Ebola cases |
B.people have rich medical resources |
C.imported Ebola cases may not be effectively responded to |
D.travelers are not allowed to go to some places |