【判断题】The book that its cover is red is on the desk.
【单选题】下列选项中不属于母材熔化的断面形状的是()
【判断题】The book which/that was lying on the table is mine.
【判断题】( a + b )型钛合金中的 b 相是体心立方结构,塑性比 a 好,可通过热处理提高强度。
【单选题】室温下,Si的本征载流子浓度约为()cm-3.
【判断题】The syntactics of English includes grammar suggests that the words in the preceding nonsence sentence might be rearranged to form the grammatically correct sentence "The book is on the desk by the doo...