简述GSM-R终端业务的主要类别。
Y43H－64中的Y表示（）。 安全阀。 节流阀。 减压阀。 止回阀。
A vessel has completed loading cargo in the port of San Francisco. What document is signed by the Master stating the terms that goods were delivered by the shipper and were received by the ship?（）. Bill of Goods。 Bill of Lading。 Cargo Manifest。 Cargo Receipt。
After installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?（） The relief valves in the system should be readjusted。 The filters and strainers should be checked frequently。 All system pressure should be readjusted。 The system should be drained and renewed with a fluid of different operating characteristic。
拜访客人时间不宜（），适时告辞。 太长。 太短。 早。
客户经理在市场开发中活动表现为（）。
