下列划线词语与现代汉语意义完全相同的一项是（）

风电已成为我国继煤电、水电之后的第三大电源，风电机组主要由塔杆和叶片组成（如图1），图2是从图1引出的平面图．假设你站在A处测得塔杆顶端C的仰角是55°，沿HA方向水平前进43米到达山底G处，在山顶B处发现正好一叶片到达最高位置，此时测得叶片的顶端D（D、C、H在同一直线上）的仰角是45°．已知叶片的长度为35米（塔杆与叶片连接处的长度忽略不计），山高BG为10米，BG⊥HG，CH⊥AH，求塔杆CH的高．（参考数据：tan55°≈1.4，tan35°≈0.7，sin55°≈0.8，sin35°≈0.6）

A: Hi, Nick! Don't you remember me?

B: Oh, wow!____

A: Yes, I am.

B:____

A: How time flies! You look different.

B:____

A: Wow! The place has also changed a lot.

B: Yes, It was a waste factory in the past.

A:____

B: Looks like? It's really a park.

A: Yes, there are trees, flowers and grass everywhere.____

B: Yes, but now it's very clean. There are many people relaxing here every day.