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不加输入信号,由电路初始储能产生的响应称为 响应。
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举一反三
【单选题】The most serious potential natural disasters in New Zealand are ______.
A.
storms and earthquakes.
B.
volcanoes and floods.
C.
earthquakes and volcanoes.
D.
floods and storms.
【单选题】—When were you born? —I was born _____________. [     ]
A.
in June three, 1989
B.
on June the third, 1989
C.
in June third, 1989
D.
on June the three, 1989
【判断题】1989年是闰年。 [     ]
A.
正确
B.
错误
【判断题】若一个无向图以顶点V1为起点进行深度优先遍历,所得的遍历序列唯一,则可以唯一确定该图。
A.
正确
B.
错误
【单选题】It is implied that __________ 查看材料
A.
powerful earthquakes usually occur after minor ones
B.
modem facilities add to the danger of an earthquake
C.
passing trucks are as dangerous as minor earthquakes
D.
there is a powerful earthquake occurring every two years
【单选题】专题地图表示办法中,质底法和范围的相同点是
A.
都只表示现象的数量特征
B.
都表示连续分布、满布于整个区域的面状现象
C.
都表示间断成片分布的面状现象
D.
都只表示质量特征
【单选题】Nuclear power can be utilized as an electrical power, but it may become a source of earthquakes.
A.
Y
B.
N
C.
NG
【判断题】若一个无向图以顶点v1为起点进行深度优先遍历,所得的遍历序列唯一,则可以唯一确定该图。
A.
正确
B.
错误
【单选题】若a<0,则2000a+11|a|等于(  )
A.
2007a
B.
-2007a
C.
-1989a
D.
1989a
【单选题】—When were you born? —I was born _______. [     ]
A.
in June three,1989
B.
on June third,1989
C.
in June the third,1989
D.
on June the three,1989
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