有关成年人的脊髓的描述正确的是()A．依据椎骨可划分为31个节段_爱下问搜题

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问题单项选择题

有关成年人的脊髓的描述正确的是()

A．依据椎骨可划分为31个节段

B．占据椎管全长

C．下端平第1腰椎下缘

D．被脑脊液直接包围着

E．直接被蛛网膜包裹

答案

参考答案：C

填空题

根据情景，选择正确的词填空。

Where, How many, What, Who, How much

1. ______________ keys can you see on the table? I can see five.
2. ______________ colour are the doors? They are yellow.
3. ______________ is that woman? She's our English teacher.
4. ______________ is the sofa? It's ￥2, 000.
5. ______________ are my glasses? They're on the fridge.

判断题

在遮蔽物高约60厘米时应采用侧身匍匐的方法。