题目

We should (捐赠) some money to those who are in trouble. 答案：【1】contribute/donate下列燃烧现象描述正确的是（　　）A、木炭在氧气中燃烧生成黑色固体B、细铁丝在空气中剧烈燃烧、火星四射C、硫在氧气中燃烧发出蓝紫色火焰D、红磷在空气中燃烧产生大量白色烟雾