光线路终端英文缩写()。
A. OLT
B. ONU
C. ONT
D. ODN
衡量一个测验能否测量出理论上的构想或特质的程度,这指的是测验的()
A. 构想效度
B. 内部一致信度
C. 内容效度
D. 效标关联效度
The speed of a vessel adjusted to that of a pilot boat at which the pilot can safely embark is().
A. ground speed
B. boarding speed
C. relative speed
D. speed of the vessel