paperback. Zustand: New. Language:Chinese.Paperback. Pub Date: 2017-01-01 Publisher: modern education press. 2017. the new study but think secret: junior high school chemistry. deduce calculation. special breakthrough practice (middle school teaching Grade examination in chemical reference materials) to the current teaching material. the exam outline for writing basis. scientific and accurate positioning. by the examination of numerous experts and national thousands of write a line of teachers;The example in the book.