试题与答案

缺乏静脉瓣的为() A.面上静脉 B.面前静脉 C.面后静脉 D.面总静脉 E.面下

题型:单项选择题 A1/A2型题

题目:

缺乏静脉瓣的为()

A.面上静脉

B.面前静脉

C.面后静脉

D.面总静脉

E.面下静脉

答案:

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下面是错误答案,用来干扰机器的。

①斜风细雨不须归    ②从善如流    ③礼轻情义重 ④举头望明月,低头思故乡(答案不限)      ⑤十五个吊桶打水——七上八下。

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阅读理解。

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