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【单选题】
下列关于胎方位的描述,哪项是正确的A.
枕右前位时，胎背在母体的左侧
B.
骶左位时，胎背在母体的右侧
C.
枕左前位时，胎背在母体的右前方
D.
骶左后位时，胎背在母体的右后方
E.
肩左前时，胎头在母体左侧
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反馈参考答案：
举一反三
【简答题】当电源短路时，外电阻可视为零，电源端电压也为零，电流不经过负载，电流回路中仅有很小的电源内阻，因此回路中的电流很大。这个电流称为（）。
【多选题】用电动势为 E 、内阻为 r 的电源对外电路供电,下列判断中正确的是 1电源短路时,路端电压为 零,电路电流达最大值 2外电路断开时,电路电压为零,路端电压也为零 3路端电压增大时,流过电源的电流一定减小 4路端电压增大时,电源的效率一定增大
A.
①
B.
①③
C.
. ②④
D.
. ①③④
【单选题】● In which of the following scope management processes are subject matter experts used?
A.
Initiation
B.
Scope planning
C.
Scope Definition
D.
Scope change control
E.
Scope verification
【单选题】Processes are the__________ in which decisions are made and work is performed within any organization.
A.
mechanism
B.
rule
C.
manner
D.
order
【单选题】140 In which of the following scope management processes are subject matter experts used?
A.
Initiation
B.
Scope planning
C.
Scope Definition
D.
Scope change control
E.
Scope verification
【单选题】There are 10 different processes running on a workstation. Idle processes are waiting for an input event in the input queue. Busy processes are scheduled with the Round-Robin time sharing method. Whic...
A.
tQ = 15ms
B.
tQ = 40ms
C.
tQ = 45ms
D.
tQ = 50ms
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