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【单选题】
一小车在水平拉力F的作用下,在光滑的水平面上做加速直线运动,撤去拉力F后,小车将( )A.
继续做加速运动
B.
加速一段旧时间后再做匀速直线运动
C.
做减速运动,直至速度为零
D.
做匀速直线运动
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【单选题】It is the photo we took years ago __________ we were at university_________ often calls up my memories of my college life.
A.
that; that
B.
when; where
C.
when; that
D.
that; where
【简答题】关于计算机病毒，能够描述其基本特征的是()。 A)通过网络传播 B)破坏性、隐蔽性、传染性和潜伏性 C)精湛的编程技术 D)破坏性、隐蔽性、先进性和继承性
【单选题】I often think of the days ______ I took part in the military training with the soldiers, _____ has a great effect on my studies.
A.
which; that
B.
that; which
C.
when; who
D.
when; which
【判断题】Chronic gastritis is characterized by chronic mucosal inflammation and atrophy of the mucosal glands.
A.
正确
B.
错误
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