(4). (单选题) MIS officers’ task is more urgent today in that ______. ( )(本题3.0分)
A、 terrorists are more difficult to find than spies
B、 most terrorist attacks are aimed at killing people
C、 terrorist attacks happen more frequently than before
D、 it takes only a little time to prepare a terrorist attack
出自:东北林业大学-大学英语3