The following set is represented by description 1. All parallelograms in plane α 2. The set of abscissa of the point of parabola y = x & sup2; - x + 1

The following set is represented by description 1. All parallelograms in plane α 2. The set of abscissa of the point of parabola y = x & sup2; - x + 1


1. All parallelograms in plane α
{x | x is two groups of parallelogram with opposite sides respectively}
2. The set of abscissa of the point of parabola y = x & sup2; - x + 1
{x | x belongs to R}



The tenth, the twentieth, the thirtieth, the ninetieth, the twelfth, the nineteenth, the twenty ninth, the thirty ninth
I can't tell when I'm going to add y and IE and when I'm going to add y and e when I'm going to rewrite ordinal numbers


Ten -- tent (non special consonant ending with th) twenty -- twenty third -- thirtieth for -- fortieth fifth -- fiftieth sixth -- sixtieth seven -- seventieth eight -- eightieth nine -- nintieth



English translation
I took the CET-4 test in June 2010. Help me calculate the real total score!


It's level 4, right? 19 + 7 + 16 + 2 + 7.5 + 1 = 52.5 plus the composition can pass. Don't panic. Ask me if I can pass. Start to prepare for level 6. Your listening is not good. Listening to more real questions is very helpful. I just listen to more real questions. Testing level 4 and 6 is basically for 28 or more. In short, reading more real questions and doing more real questions



I listen 22, read 19, choose 2, 5, finish 3, 5, composition 8, translation 1, how much is the conversion?


The specific method is not clear. The methods of those experts are in a mess,
For example, the weight of the four questions is different



English translation
Far away Altair, Jiaojiao River Han woman
A simple hand, a loom
All day long without a chapter, weeping like rain
He Han Qing and shallow, phase to reply a few Xu
Ying Ying water, pulse can not speak
It's urgent to translate it into English,


Altair,so far away,which is right in the other side of the milkyway. The maid is at this side waiting and waiting.
Loom is working,with her slender hand operating.
But no cloth can be made after so many days and nights,because of her slack mind and crying eyes.
I look up to the milkyway,which is clear and bright.
It looks like a river narrow and shallow,but actually a canoyn deep and forever.
The girl and her lover,knowing they'll never join together,are in silence watching each other.
I translated it myself. Do you know the Chinese meaning of this poem
"Altair is so far away, on the other side of the galaxy, the weaver girl has been waiting here
The loom was spinning and her slender hands were working
But day and night, still no cloth, because her tired heart and tears eyes
I look up at the Milky way, bright and clear
It looks like a shallow narrow river, but in fact it is an eternal deep canyon
Zhinu and her lover know that they can't meet each other, they just look at each other in silence. "
It's useless to use a translator for such a complicated translation. The translated things don't make sense at all



1. Three of 22 and four of 33 2. Seven of 15 and three of five 3. Nine of seven and one of three 4. Three of five and two of three
5. Two out of thirteen and five out of twenty-six 6. One out of six and five out of eighteen 7. Three out of eight and one out of four 8. One out of eight and four out of thirty-two
This is a general score


Three out of 22 is more than four out of 33; seven out of 15 is less than three out of five; nine out of seven is more than one-third; and three out of five is less than two-thirds
5. 2 / 13 is less than 5 / 26 6. 1 / 6 is less than 5 / 18 7. 3 / 8 is more than 1 / 4 8. 1 / 8 is equal to 4 / 32
Is that what you want,



Find rules 2, 4, 7, 9, 12, 14, 16, 19, 21__ What is the last digit?


It's 23. The rule is first + 2, then + 3



2 / 1 + 6 / 5 + 12 / 11 + 20 / 19 + 30 / 29 ···· 9702 / 9701 + 9900 / 9899


2/1+6/5+12/11+20/19+30/29····9702/9701+9900/9899=99-(2/1+6/1+12/1+20/1+30/1+…… +9702/1+9900/1)=99-(1-2/1+2/1-3/1+3/1-4/1+4/1-5/1+5/1-6/1+…… +98 / 1-99 / 1 + 99 / 1-100 / 1) = 99 - (1-100 / 1) = 98 and 100 / 1 = 98



The simple calculation that can be simplified is 49.5 △ 9 + 35.1 △ 7.8 [2.5-8 / 31 △ {6 / 11 + 0.75]} × 17 / 30 19.63 × 99 + 19.63
{7.6-10.5 × 0.6} × 10 / 13


49.5 ﹣ 9 + 35.1 ﹣ 7.8 = 5.5 + 4.5 = 10 [2.5-8 / 31 ﹣ 6 / 11 + 0.75]} × 17 / 30 = (2.5-31 / 8 * 12 / 31) * 30 / 17 = (2.5-1.5) * 30 / 17 = 1 * 30 / 17 = 30 / 1719.63 × 99 + 19.63 = 19.63 * (99 + 1) = 19.63 * 100 = 1963 {7.6-10.5 × 0.6} × 13 / 10 = (7



Find the rules 11 12 14 () 26 42


The fourth number should be 18
be aware:
12-11=1
14-12=2
42-26=16
1. 2 and 16 are 0, 1 and 4 power of 2 respectively
So the fourth number should be 4 from 14 and 8 from the fifth
So the fourth number should be 18