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【简答题】
已知点M在椭圆 上， 以M为圆心的圆与x轴相切于椭圆的右焦点F。 （1）若圆M与y轴相切，求椭圆的离心率； （2）若圆M与轴相交于A，B两点，且△ABM是边长为2的正三角形，求椭圆的方程。
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举一反三
【简答题】[ A] numerous [ B] monstrous [ C] tremendous [ D] industrious
【简答题】A．endless B．multiple C．uncountable D．numerous
【简答题】若f(x)在x处连续，｜(x)｜、f2(x)在x0处是否连续?又若｜f(x)｜、f2(x)在x0处连续，f(x)在x0处是否连续?
【单选题】Numerous studies already link the first meal of the day to better classroom __________．
A.
performance
B.
function
C.
behavior
D.
display
【简答题】A．numerical B．numerable C．enormous D．numerous
【单选题】“The problems are as numerous as trivial. ” Which of the following sentences correctly indicates the meaning:
A.
There are numerous problems, but they are trivial.
B.
Although there are numerous problems, they are trivial.
C.
The problems are numerous, and they are trivial.
D.
The problems are numerous, so they are trivial.
【简答题】A)enormous B)considerable C)numerous D)giant
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