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【简答题】
Large electronic items (e.g. a laptop) have to be removed from __________ and _________.
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【简答题】要完成数控系统802C与电脑的连接,需要一根串口线连接电脑和数控系统的( )接口。电脑上安装的软件名称是( )。
【简答题】额定电压220V 热水包容积1.2L 额定频率50Hz 冷水包容积0.5L 制热功率500W 保险柜容积16L 制冷功率98W 防漏电类型 I类 小明家新买了一台饮水机，铭牌如表所示．小明的父母经常为夜间是否要关闭饮水机而发生争执：妈妈认为应该关机，理由是饮水机在夜间无人饮水时仍在对热水包里的水间歇性加热，白白消耗电能．爸爸则认为不该关机，因为第二天重新开机为凉水加热会消耗更多的电能．于是小明决定...
【单选题】A hierarchical network topology in which each device is connected to a central node, either directly or through one or more other devices, is also called a(n) _______ network.
A.
tree
B.
bus
C.
mesh
D.
star
【多选题】What is the procedure of post-pruning?
A.
First, consider the cost complexity of a tree
B.
Then, for each internal node, N, compute the cost complexity of the subtree at N
C.
And also compute the cost complexity of the subtree at N if it were to be pruned
D.
At la st, compare the two values. If pruning the subtree at node N would result in a smaller cost complexity, the subtree is pruned. Otherwise, the subtree is kept
【简答题】同一票务违章、票务事故的情节涉及两条或以上的条款时,以( )或( )的条款来进行定性和处理。
【单选题】以下不是受精卵着床必须具备条件的是
A.
透明带消失
B.
囊胚细胞滋养细胞分化出合体滋养细胞
C.
子宫内膜处于增生晚期
D.
体内分泌足量的雌激素和孕酮
E.
子宫内膜处于分泌期
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