水准仪主要轴线包括()。A.视准轴、管水准器轴、圆水准器轴、横轴 B.视准轴、管水准 发布时间:2019-12-26 15:46 │ 来源:www.tikuol.com 题型:单项选择题 问题: 水准仪主要轴线包括()。A.视准轴、管水准器轴、圆水准器轴、横轴B.视准轴、管水准器轴、圆水准器轴、水平轴C.视准轴、十字丝轴、圆水准器轴、竖轴D.视准轴、管水准器轴、圆水准器轴、竖轴
题型:单项选择题 某磁盘的转速为7200转/分,传输速度为4MB/s,控制器开销为1ms。要保证读或写一个512B的扇区的平均时间为11.3ms。那么,该磁盘的平均寻道时间最大应不超过 (64) ms。A.3.9B.4.7C.5.5D.6.1 查看答案
题型:单项选择题 下列各句均有一处错误, 请找出并改正。1. My family is all at home. ________ _2. What do your father do? ________ _3. The girl wants be a doctor._____ _ 4. His sister is going be a college student.________ 5. Is your sister a teacher and a doctor?_________ 查看答案