试题详情
/ ðə, ɪntrə'dʌkʃn ɪk'spleɪnz hau ðə mə'ʃi:n ɪz ju:zd /
- A、The instruction explains how the medicine is used.
- B、The instructions explain how the machine is used.
- C、The introduction explains how the machine is used.
知识点
参考答案
采纳过本试题的试卷