73 According to Professor Steffen, which of the following is more threatening to the health of people attending a huge
public gathering?
(A)Injuries
(B)Infectious diseases
(C)The mood of event organizers
(D)Insufficient budget for an event
答案:登入後查看
統計: A(46), B(36), C(22), D(14), E(0) #769519
統計: A(46), B(36), C(22), D(14), E(0) #769519