选择题:He asked John ______ he could swim. 题目分类:人文英语3 题目类型:选择题 查看权限:VIP 题目内容: He asked John ______ he could swim.选择一项:A. thatB. if C. how 参考答案:
4. The word decathlon in paragraph 3 probably mean 4. The word decathlon in paragraph 3 probably means回答. A. jumping B. five trac 分类:人文英语3 题型:选择题 查看答案
一对渐开线标准圆柱直齿轮外啮合传动,已知齿轮的齿数Z1=30,Z2=40,分度圆压力角α=20o,齿 一对渐开线标准圆柱直齿轮外啮合传动,已知齿轮的齿数Z1=30,Z2=40,分度圆压力角α=20o,齿顶高系数ha*=1,径向间隙系数C*=0.25,标准中心距a 分类:人文英语3 题型:选择题 查看答案