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【单选题】
中性点直接接地系统发生单相接地故障时,非故障相电压A.
上升为线电压
B.
大于相电压小于线电压
C.
大于零小于相电压
D.
基本不变
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举一反三
【单选题】枕先露分娩机制中胎头衔接是指（ ）
A.
胎头进入骨盆上口平面
B.
胎头双顶径进入骨盆上口平面
C.
胎头颅骨最低点到达骨盆上口平面
D.
胎头枕额径进入骨盆上口平面
E.
胎头枕颏径进入骨盆上口平面
【单选题】Why did Lucky Dog talk to a shelter in Grand Bahama?
A.
because Lucky Dog wants to take dogs there
B.
because Lucky Dog wants the shelter to come help them
C.
because Lucky Dog wants to save dogs there
D.
because Lucky Dog wants to send food to the dogs there
【单选题】Why did the dog retreat to a corner and wait for the countdown of her days?
A.
The dog thought that her master wouldn't come so soon.
B.
The dog lost her hope to see her master again.
C.
The dog would rather die than live.
D.
The dog was sad because she was missing her master.
【单选题】Why______did you take the dog into the churchyard?
A.
on earth
B.
on the earth
C.
in earth
D.
in the earth
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