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问题 解答题
已知，反比例函数y=
12
x
和一次函数y=kx-7都经过P（m，2），求这个一次函数的解析式．
答案

∵反比例函数y=

12
x
和一次函数y=kx-7都经过P（m，2），

∴2=

12
m
，

∴m=6，

∴P（6，2），代入一次函数y=kx-7中，

2=6k-7，

∴k=

3
2
，

∴y=

3
2
x-7．

听力题

Eleven-year-old Antonin Careme could not believe that his father ordered a lot of delicious food. It was an unexpected(意料不到的) dinner b__1__ the Careme family was poor. When he was eating thankfully, his father t__2__ him in a sad voice that this would be a farewell （告别）meal. His father could not support all his children any m__3__, s__4__ Antonin would have to leave home to make money h__5__。After the meal, Antonin walked a__6__ the streets and felt sad. He knocked on the door of a restaurant and the o__7__ happened to(碰巧) need an waiter. In the restaurant, young Antonin g__8__ his first lesson in cooking. He was hardworking and his employer(雇主) d__9__ to teach him all the skills(技能) and secrets of French cooking. When he was fifteen years old, Antonin trained under the famous cook, Baily.

One of Baily’s customers was pleased with Antonin’s style of cooking, he asked him to be his personal c__10__, working at his home. Antonin later went on to work for a diplomat, a banker and even the king.

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单项选择题

下列哪项是噻嗪类(thiazides)利尿药的药理作用()

A．拮抗醛固酮作用

B．主要作用于远曲小管

C．选择性抑制近曲小管电解质重吸收

D．轻度抑制碳酸酐酶作用

E．迅速提高血浆渗透压
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