Temporary Certificates of Inspection are effective until the().
A. SOLAS Certificate is issued
B. Load Line Certificate is renewed
C. classification society approval is issued
D. permanent Certificate of Inspection is issued
尾箱的设置和撤并需经()批准,并报()和()的部门备案。
A. 相关部门主管
B. 业务经理
C. 现金出纳业务管理部门
D. 承担金库管理职能
石英晶体谐振器组成的滤波器性能好,工作频率稳定,通频带(),不需调谐。
A. 窄
B. 宽
C. 高
D. 不定