问答题

按形态地貌划分为哪些地貌类型？

答案：地貌形态类型指根据地表形态划分的地貌类型。目前世界各地的形态分类并不统一。我国的陆地地貌习惯上划分为平原、丘陵、山地、...

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单项选择题

离心沉降速度是径向速度。

A．对
B．错

单项选择题

Melinda is a married 35-year-old pregnant childless woman who has
lost four previous pregnancies between 16 and 23 weeks gestation.
She currently has reached 23 weeks and 3 days of gestation, her
fetus is seemingly healthy, and has an estimated weight of 550
grams (+/-1.2 lbs). She has ruptured her bag of waters and is now
having labor that seems unstoppable with tocolytics. Delivery seems
inevitable.
What is the physician’s duty to inform the parents?