患者男性，4岁，左侧阴囊肿大，直立时阴囊肿大明显，平卧时消失_爱下问搜题

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问题单项选择题案例分析题

患者男性，4岁，左侧阴囊肿大，直立时阴囊肿大明显，平卧时消失。

若患者确诊为水疝且阴囊光亮如晶，苔薄白，脉细滑。其选则方药为（）

A.知柏地黄丸加减

B.济生肾气丸加减

C.金匮肾气丸加减

D.地黄饮子

E.六味地黄丸加减

答案

参考答案：B

改错题

短文改错。

     Not too long ago, people can't go scuba diving on
Hainan Island, or anywhere else. This were because
there was no machine allowing person to breathe
under water for long time. In 1943 Jacques
Cousteau and his friend made it possible by invent the scuba
machine. Cousteau was very interested on diving
deep into the sea, but wanted to be an explorer. He
bought a ship and used them to explore under the sea.
He also was liked to make videos. As he explored
the sea, he took pictures and videos of many thing that
people had never seen before.

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问答题

如图所示，巡查员站立于一空的贮液池边，检查池角处出液口的安全情况．已知池宽为L，照明灯到池底的距离为H．若保持照明光束方向不变，向贮液池中注入某种液体，当液面高为

时，池底的光斑距离出液口

（1）试求当液面高为

H时，池底的光斑到出液口的距离x．

（2）控制出液口缓慢地排出液体，使液面以v₀的速率匀速下降，试求池底的光斑移动的速率v_x．