A charter-party usually contains a clause stating that the master is to be under the orders of the()as regards employment,agency or other arrangements.
A. Shipowner
B. Charterer
C. carrier
D. shipper
有源应答器也称固定应答器。()
A. 正确
B. 错误
()定价策略适合商业银行对客户实行分层次服务定价。
A. 渗透
B. 产品组合
C. 高额
D. 产品形式(客户)细分
简述晶体管逆变器的电路中采取奶协措施来防止晶体管被击穿的故障?