电热法生产铁合金其冶炼过程的热量来源主要是（），使用（）还原剂还原矿石中的（），采用连续式的操作工艺，在还原电炉中进行。
参考答案：电能；碳质；氧化物
单词拼写（共10小题；每小题1分，满分10分）
96. Peter was my c on the journey, so I didn’t feel lonely.
97. Every one was a at the news that war might break out.
98. Flower arrangement is an (高雅的) art.
99. In football match t is even more important than individual skills
100. The s was covered with things that had been washed up by the sea.
101. She is a leader in the (保护) of wildlife.
102. Workers in China can get a p after they retire.
103. It is often less expensive to see a doctor in a c than in a hospital.
104. A golden wedding is the fiftieth a of a marriage.
105. Out of (同情) for the homeless child, she gave him shelter for the night.
下列关于旋翼直径过大可能带来的坏处的说法，错误的是：（）
A.直升机重量增加
B.使直升机在丛林等复杂地貌条件机动能力差
C.增大旋翼诱阻功率
