艾滋病的传播途径是（）
A.消化道传播
B.吸血节肢动物传播
C.体液传播
D.呼吸道传播
E.土壤传播
参考答案：C
单词拼写。
1. The balloon suddenly b_______.
2. He was badly i_______ in the accident.
3. They r______ a boy from drowning.
4. All his life was full of______ (痛苦).
5. Trees along the road provide s______ from the sun for the farmers.
6. It is reported that the forests in Russian have been d______ by one fire after another.
下列物质在O2中燃烧后的生成物，常温下为固态酸性氧化物的是（ ）
A．磷
B．硫
C．碳
D．镁
