第一节 语音知识（共5小题；每小题1分，满分5分）
1. combA. abandon B. tombC. globe D. embassy
2. aircraft A. recently B. concentrate C. barbecue D. concept
3. react A. sacred B. blame C. criminal D. campaign
4. classify A. quit B. anxiety C. survival D. appetite
5. loss A. post B. annoy C. associate D. lemon