美军在本世纪使用最多的，具有侦察和攻击的无人机是（）。
参考答案：捕食者无人机
— I am so sorry to have come late for the meeting.
— It is not your fault. With _______ rush-hour traffic and ______ heavy rain, it is no wonder
you were late.[ ]
A.a; a
B. the; the
C. /; /
D. /; a
暗反应
