When a > b > 1, A-B is better than a + B-2

When a > b > 1, A-B is better than a + B-2


Because a-b - (a + b-2) = 2-2b, because a is greater than B and greater than 1, so 2-2b is less than 0, so A-B is less than a + B-2



In the song I love you - China, "when the brilliant sun jumps out of the blue waves of your East China Sea, the stars still twinkle on your Pamirs Plateau; when your northern country is still a world of silver! Your southern Xinjiang is already full of spring. "The main reason for the difference is ()
A. Latitude factor, longitude factor B. longitude factor, latitude factor C. terrain factor, land and sea factor D. land and sea factor, terrain factor


The wide longitude crossing in China is the reason for the difference between the morning and dusk in the East and the West. The westernmost end of China is in the Pamir Plateau, and the easternmost end is at the confluence of Heilongjiang and Wusuli rivers. It can be seen that the longitude crossing between the East and the west is about 60 degrees, and it spans five time zones. The difference between the north and the south is nearly 50 degrees, which makes the climate types in China rich and diverse, and makes the north and South scenes different even in the same season



If | a | 1. | B | 1. Try to compare the size relationship between | a + B | + | A-B | and 2
Problem solving


Let f (x) = | x + B | + | X-B | (| B | ≤ 1, X ∈ [- 1,1]) --- if | B | = 1, then f (x) = | x + 1 | + | X-1 | - 1 ≤ x ≤ 1  x + 1 ≥ 0, X-1 ≤ 0, f (x) = x + 1 - (x-1) = 2 -------- - if | B | = 0, then f (x) = 2 | x | if | x | = 1, f (x) = 2 if | x | = 1|



I'll meet you at the airport when you _______ .
A,arrive B,get C.reach D,get to


Answer a
Explanation:
Arrive can be used as an intransitive verb
Get must be followed by here or there to get there or here
Reach is a transitive verb. It must be followed by an object
Get to is followed by the specific address