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46
A.
46-A
B.
46-B
C.
46-C
D.
46-D
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【单选题】换路前已经达到稳定状态,t=0时刻开关闭合,求换路后时间常数τ为( )
A.
1/2
B.
1/3
C.
1/4
D.
1
【简答题】Howling(吼叫) is a behavior commonly observed among a wolf pack(狼群). As pack animals, wolves work together to hunt and rely on howling as an important means of communication among each other. There’re d...
【单选题】某基础工程由挖基槽、浇垫层、砌砖基、回填土4个施工过程组成,在5个施工段组织全等节拍流水施工,流水节拍均为3d,要求砌砖基2天后才能进行回填土,该工程的流水工期为( )。
A.
24d
B.
26d
C.
28d
D.
30d
【单选题】急性肠梗阻可出现下列变化,除了:
A.
肠管迅速膨胀、肠管压力升高
B.
肠壁代偿性肥厚
C.
肠壁血运障碍
D.
肠壁充血、增厚
E.
肠道穿孔
【单选题】换路前已经达到稳定状态,t=0时刻开关闭合,求换路后t>0时,与电压源相连的电阻的电压为( )
A.
8/3+1/3e(-2t)
B.
-8/3-1/3e(-2t)
C.
8/3+1/3e(-3t)
D.
-8/3-1/3e(-3t)
【单选题】换路前已经达到稳定状态,t=0时刻开关闭合,求换路后时间足够长电路达到稳定时,电感上流过的电流I为( )
A.
1/2
B.
1/3
C.
1/4
D.
1
【单选题】换路前已经达到稳定状态,t=0时刻开关闭合,求换路后t>0时,电感上流过的电流I表达式为( )
A.
1/4+1/6e(-2t)
B.
1/3+1/6e(-2t)
C.
1/2+1/4e(-3t)
D.
1/3+1/6e(-3t)
【单选题】某工程基础施工由挖基槽、浇垫层、砌砖基、回填土4个施工过程组成,在5个施工段上组织流水施工,流水节拍3d,要求垫层浇筑后2d才能砌砖基,该工程的流水施工工期为( )d。
A.
24
B.
26
C.
28
D.
30
【简答题】Howling is a behaviour commonly observed among a wolf pack. As pack animals, wolves work together to hunt and rely on howling as an important means of communication among each other. There are differe...
【简答题】Howling is a behavior commonly observed among a wolf nark. An animals, wolves work together to hunt and rely on howling was an important means of communication each other. There are different explants...
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