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【多选题】
以下选项中,属于计算机病毒的特点的是_A.
寄生性
B.
传染性
C.
潜伏性
D.
公开性
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举一反三
【简答题】汽车配件网络营销方案建设可利用的有效资源有 、 、 。
【判断题】You had better go to the job interview together with your parents, friends or other relatives so as to make yourself even more confident and less nervous.
A.
正确
B.
错误
【单选题】置于水平面上的物体，在水平方向的拉力作用下向前运动，当拉力增大时，物体的运动速度也随之变大，则该物体所受的滑动摩擦力将（）
A.
增大
B.
不变
C.
减小
D.
无法确定
【单选题】China has a lot of coal and oil, and it is rich in other rare minerals______.
A.
as well
B.
also
C.
either
D.
neither
【简答题】阅读理解。 People invented poetry as they helped to remember things. Before the invention of writing, there was no other way but(除了)to remember important things. People early founded that rhyme and rhythm(...
【简答题】You had better not to go out now. It ( ) (rain) heavily.
【单选题】--- Daddy, I don’t want to go to Jimmy’s birthday. --- You had better go. ____ you make a promise, you have to keep it.
A.
Once
B.
Even if
C.
Unless
D.
In case
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