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【多选题】
(多选题)下面说法正确的是( )
A.
加速度都是矢量,加速度的物体所受到的合外力的方向决定。
B.
质量越大,物体保持原有运动状态的内在能力越强,则惯性就越大。
C.
作用力和反作用力总是成对出现,大小相等,且方向相反,因此可以相互抵消。
D.
作用力和反作用力总是成对出现,同时存在,同时消失,属于同一性质的力。
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举一反三
【单选题】The example given in the passage implies that ______.
A.
participation in interesting activities relating to a subject improves one’s achievement in that area
B.
school principals do more than their share in interpreting the curriculum to their parents
C.
only a small part of the school day should be set apart for drilling in arithmetic
D.
teachers should occasionally make home visit to parents
【单选题】《北平情歌》的作者是()
A.
林庚
B.
吴祖湘
C.
宗白华
D.
叶朗
【简答题】在实验(二)3 看门狗超时的实验中: 1.T32的预设值小于500ms,在I0.3的上升沿,是否会因为看门狗超时自动切换到STOP模式。 2.Q0.3对应的LED是否比Q0.5对应的LED延迟点亮约0.5s,并解释原因。 3.当设置T32的预设值大于500ms(例如520ms),在I0.3的上升沿,CPU是否会自动切换到STOP模式。 4.切换到STOP模式后,查看到“PLC信息”对话框中的事件记...
【简答题】《北平情歌》的作者是?
【单选题】进行大量不保留灌肠时,成人患者每次用液量为
A.
50~100ml
B.
100~200ml
C.
200~500ml
D.
500~1000ml
E.
1000~1500ml
【单选题】Isolating and locking out machinery means:
A.
Switching off the machine while it is not in use.
B.
Locating the machine away from busy work areas.
C.
Fitting a padlock or locking device so the machine cannot be accidentally turned on.
D.
Switching the machine off during maintenance, cleaning and repair.
【单选题】Isolating a machine means:
A.
switching off the machine
B.
moving the machine away from busy work areas
C.
placing a locking device so the machine cannot be accidently turned on
D.
All of the above
【单选题】成人进行大量不保留灌肠时,每次灌肠液量为
A.
50~100ml
B.
100~200ml
C.
200~500ml
D.
500~1000ml
E.
1000~1500ml
【单选题】Isolating a machine means:
A.
placing a locking device so the machine cannot be accidently turned on
B.
moving the machine away from busy work areas
C.
switching off the machine
D.
All of the above
【单选题】成人进行大量不保留灌肠时,每次灌肠液量为
A.
50~100ml
B.
100~200ml
C.
200~500ml
D.
500~1000ml
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