已知△ABC中,点A、B的坐标分别为(-2,0),B(2,0),点C在x轴上方.

题型:解答题

问题:

已知△ABC中,点A、B的坐标分别为(-
2
,0),B(
2
,0)
,点C在x轴上方.
(1)若点C坐标为(
2
,1)
,求以A、B为焦点且经过点C的椭圆的方程;
(2)过点P(m,0)作倾角为
3
4
π
的直线l交(1)中曲线于M、N两点,若点Q(1,0)恰在以线段MN为直径的圆上,求实数m的值.
考点:椭圆的标准方程及图象圆锥曲线综合
题型:解答题

属于五行之“火”的是()

A.宫音

B.角音

C.商音

D.徵音

E.羽音

题型:解答题

在等腰△ABC中,三边分别为a、b、c,其中a=5,若关于x的方程x2+(b+2)x+6﹣b=0有两个相等的实数根,求△ABC的周长.

题型:解答题
完形填空。

                                                 I Love You, Mum and Dad!
 
    Tears go out of my eyes when I talk to my parents on the phone. What are they doing when I call them?
This is what l want to know most.I have supper at 5 o'clock in the dining hall. There is no need for me to
     1    by myself, no need to wash the dishes. However, now it is the busiest time for my parents. Dad works
from seven o'clock in the morning to nine o'clock in the evening. Therefore, all the housework is    2  to my
mum.    3      her own job, she also has to work at the vineyard (葡萄园).
      Every day she gets up at 4 0'clock in the morning, and then works till dark. One day I called her at 7:30 in
the evening, and she told me that she was still in the vineyard and hadn't had supper yet. Tears ran down from      4   cheeks(脸颊),and 1 was filled with     5     . I promise her to study hard in the university, because I am
her hope.I promise her to take care of myself, because I am important to her.…I promise her so much and I
just want her to promise me that she can take care of herself and Dad because they are      6    like the blood in
my body.I cannot      7   without them.
      In my    8     ,everyone is common. We are willing to eam ourliving by our own hands. We are very happy
to have the meal together on the New Year's Eve. My mother has ever said that everyone in the family is
important;no one can be   9    .
     Mum has ever said that the     10     time for Dad and her is when my sister and I come back home. We play
cards in the room,watch TV, do anything we like with Dad and Mum preparing delicious food in the     11   . It
is also the happiest time for me. At that moment, I could forget all the difficulties and unhappiness. The only
thing I would like to do is to  12   the time with my parents.
     Love, sometimes, doesn't need many words. Give your parents a call, and tell them you miss them...

( )1.A.  cook     
( )2.A. done      
( )3 A  With      
( )4.A. my        
( )5.A. regret    
( )6 A.  still    
( )7.A. study     
( )8.A city       
( )9. A.  weak    
( )10. A.  busiest
( )11.A bathroom  
( )12.A enjoy     
B.feed     
B.taken    
B.Besides  
B.his      
B.shame    
B.only     
B.live     
B.lass     
B.sad      
B.happiest 
B.bedroom  
B.find     
C. eat    
C.left   
C As      
C.her    
C.worry  
C. almost 
C.develop
C.family  
C. free   
CIuckiest
C.study  
C.control
D.live     
D.tumed   
D.From    
D.our     
D.trouble 
D.just     
D.succeed 
D.area     
D.absent  
D.easiest 
D.kitchen 
D.get     
题型:解答题

五加皮的适应证是()。

A.风湿痹痛,四肢拘挛

B.肝肾不足,腰膝痿软

C.小儿行迟

D.水肿、小便不利

E.去积杀虫

题型:解答题

QJZ-300/1140真空磁力起动器按下起动按钮的时间不能太长,应小于0.5秒。()

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