下列说法中正确的是（　　）

A．铵盐热分解一定有氨气产生

B．因为SO₂可以使酸性KMnO₄溶液褪色，所以SO₂有漂白性

C．二氧化硫和二氧化氮都能形成酸雨，酸雨的pH＜5.6

D．用铜和稀硝酸反应制取NO，并用向上排空气法收集气体

(Ⅱ)

One day while a girl was walking in the woods she found two starving songbirds. She took them home and put them in a small (31) . She cared for them and felt great love for them.

Once the (32) and per of the two birds flew from the cage. Therefore, (33) he flew close, she grasped him (34) . She felt glad, but suddenly she felt the bird go limp. She opened her hand and (35) in horror at the dead bird.

She noticed the other bird moving back and forth on the edge of the cage. She could feel his great need for (36) . She lifted him from the cage and (37) him softly into the air. The bird circled once, twice, three times.

The girl watched delightedly at the bird’ s enjoyment. Her heart was no longer (38) with her loss. Suddenly the bird flew closer and (39) softly on her shoulder. It sang the sweetest melody that she had ever heard.

The fastest way to (40) love is to hold on it too tightly, while the best way to keep love is to give it WINGS!

37（）

A. dropped

B. pulled

C. seized

D. tossed