【单选题】鲁班发明锯子是利用了和田十二法中的哪种方法?
【简答题】请按照下表格式,填写幼儿园户外环境考察分享讲解稿,并上传电子版附件。
【单选题】ECDIS should be capable of ________ all chart information necessary for safe and efficient navigation originated.
【单选题】Our English teacher always tells us ______ new word ______ heart. [ ]