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【单选题】
下列哪一种元素不属于矿物质A.
铁
B.
磷
C.
硒
D.
氮
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反馈参考答案：
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 you take the dog into the churchyard?
A.
on earth
B.
on the earth
C.
in earth
D.
in the earth
【单选题】Why did the businessman want to buy the dog?
A.
He wanted to give it to the police.
B.
It was the only dog in the shop.
C.
It did not look happy.
D.
He wanted it for his boy.
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