题目：
语音知识
1.radiationA. category B. persuade C. lackD. contrary
2 styleA. ugly B. yellowC identify D. yesterday
3. worth
A、breath
B、bathes
C、though
D、southern4.example A. experienceB. exhibition C. examine D. exercise5.discourageA. route B. dangerousC. wound D. trouble
这里显示答案和解析
