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【简答题】
已知椭圆 ： 的离心率为 ，右焦点 到直线 的距离为 ． （1）求椭圆 的方程； （2）过椭圆右焦点F 2 斜率为 （ ）的直线 与椭圆 相交于 两点， 为椭圆的右顶点，直线 分别交直线 于点 ，线段 的中点为 ，记直线 的斜率为 ，求证： 为定值．
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反馈参考答案：
举一反三
【简答题】Let him come in andfill our home with wealth!
【单选题】The rescuing team five doctors and ten nurses set off. A. is made up of B. is made up for C. made up of D. made up for
A.
is made up of
B.
is made up for
C.
made up of
D.
made up for
【单选题】Strangely the story ___ is popular ___ the young.
A.
made up; with
B.
made up; to
C.
made up of; with
D.
made up of; to
【单选题】Though the girl to learn Japanese, she couldn’t catch up with her classmates.
A.
made effort
B.
made an effort
C.
took every effort
D.
gave her efforts
【简答题】在施工合同中，（ ）是承包人的义务。 Ａ提供施工场地 Ｂ办理土地征用 Ｃ在保修期内负责照管工程现场 Ｄ工程施工期内对施工现场的照管负责
【单选题】Hello,boys and girls! Let's__to read the text of Unit3.
A.
begin
B.
like
C.
favorite
D.
stay
【单选题】Hello, boys and girls! Let's___ to read the text of Unit 3.
A.
from...to
B.
begin
C.
bring
D.
be good for
E.
like
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