【单选题】数年前一位芬兰大学生在Internet上公开发布了一种免费操作系统_________,经过许多人的努力,该操作系统正不断完善,并推广应用。
【单选题】When the aircraft encounters the microburst during the stage of landing, how will the performance of the aircraft change?
A.
The performance will be increased due to the increasing lift, and then decreased due to the decreased lift.
B.
The performance will be increased due to the increasing lift.
C.
The performance will be increased due to the increasing lift, and then decreased. After that, it will be increased again.
【单选题】【上一道题的答案是B】数年前一位芬兰大学生在Internet上公开发布了一种免费操作系统_________,经过许多人的努力,该操作系统正不断完善,并推广应用
【判断题】促销活动的实质是一种沟通活动,信息传递方式是由企业向消费者的单向传递。
【单选题】数年前一位芬兰大学生在Internet上公开发布了一种免费操作系统_________,经过许多人的努力,该操作系统正不断完善,并推广应用
【单选题】Hardly ______ when the lights went out.
A.
the performance had begun
B.
had the performance begun
D.
did the performance begin