题目

如下图，如果梯形的面积是937.5平方厘米，上底是30厘米，下底是45厘米，那么阴影部分的面积是（）。 A . 375平方厘米 B . 93.75平方厘米 C . 187.5平方厘米 D . 138.5平方厘米 答案：C用下列词的适当形式填空。1. He's too old. He can't run _______ (quick). 2. She's very careless. She can't do her lessons _______ (careful). 3. Little Tom is often late for class. His teacher is quite _______ with him. He said to him _______, "Don't be     late again." (angry) 4. It's dark in the room. Can you see these pictures _______ enough (clear)? 5. Listen, the children are playing games _______ (noisy). 6. There was a _______ rain last night. When I got home, it was raining _______ (heavy). 7. Please take _______ care of the little bird. It can sing _______ (good). 8. Walk _______ in the library, you should keep _______ (quiet).