【单选题】设(x 2 +1)(2x+1) 9 =a 0 +a 1 (x+2)+a 2 (x+2) 2 +…+a 11 (x+2) 11 ,则a 0 +a 1 +a 2 +…+a 11 的值为( )
【单选题】The richly textured example supplies __________ to bring the example to life.
D.
trials and tribulations
【单选题】设(x 2 +1)(2x+1) 9 =a 0 +a 1 (x+2)+a 2 (x+2) 2 +…+a 11 (x+2) 11 ,则a 1 +a 2 +…+a 11 的值为 [ ]
【单选题】(x 2 +1)(2x+1) 9 =a 0 +a 1 (x+2)+a 2 (x+2) 2 +…+a 11 (x+2) 11 ,则a 0 +a 1 +a 2 +…+a 11 的值为( )
【单选题】(x+1)(2x+1) 10 =a 0 +a 1 (x+2)+a 2 (x+2) 2 +…+a 11 (x+2) 11 ,则a 0 +a 1 +a 2 +…+a 11 的值为 [ ]
【单选题】51等高线是地面()相等的相邻点的连线。
【单选题】An example is used to illustrate or represent a group of people, ideas, conditions, experiences, or the like. When we examples, which of the following statement is NOT TRUE?
A.
We should use the examples to clarify unfamiliar or complex ideas.
B.
We should use personal examples to reinforce our ideas.
C.
We should personalize the example to add human interest in our speech.
D.
We should make the examples vivid and richly textured.
【简答题】设(x 2 +1)(2x+1) 9 =a 0 +a 1 (x+2)+a 2 (x+2) 2 +…+a 11 (x+2) 11 ,则a 0 +a 1 +a 2 +…+a 11 的值为( ) A.-2 B.-1 C.1 D.2