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【单选题】
The role that weather plays in formation flight has not yet been clearly defined.A.
Right
B.
Wrong
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反馈参考答案：
举一反三
【简答题】The rack protrudes from
both sides and connects to the rods.
【单选题】When the umbilical cord slips through the cervix and protrudes from the vagina before the baby is born, it is called_________.
A.
placenta previa
B.
placentral abruption
C.
uterine rupture
D.
cord prolapse
【判断题】The lower end of the scapular hillock protrudes downward, called the acromion.（ ）
A.
正确
B.
错误
【单选题】When the umbilical cord slips through the cervix and protrudes from the vagina before the baby is born, it is called ________.
A.
placenta previa
B.
placental abruption
C.
uterine rupture
D.
cord prolapse
【单选题】The portion of a hair fiber that protrudes through the skin and is visible to eye is called( )
A.
the hair shaft
B.
the hair root
C.
the hair follicle
D.
the hair papilla
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