10. A number of people who have tested positive for a new strain of bird flu in China have had no history of contact with _______, adding to the mystery about the virus that has killed 16 to date.
(A) sanitation
(B) prescription
(C) poultry
(D) hygiene）

答案：登入後查看
統計： A(23), B(17), C(208), D(21), E(0) #421440

詳解 (共 2 筆)

#650415
sanitation  n. 公共衛生;衛生設備
prescription  n. 命令,法規;處方;慣例
hygiene  n.  衛生;衛生學,保健法
7
0
#638079
 poultry家禽[U][G]
5
0