限制被测要素的实际位置对理想位置变动量的指标称为()
A.定位度
B.位置度
C.方位度
参考答案:B
调驳阀箱属于()管系。
A.舱底水
B.压载
C.通风
D.消防
Questions 27~30
A. Their lecturer-student ratio is not reasonable. B. Their staff is not interested in helping students. C. Their lecture halls are not well equipped. D. Their degrees are not accepted by employers.