The responsibilities of the engineer officer in charge of the watch do not include （） ["to ensure the main propulsion plant are kept under constant surveillance","to ensure the auxiliary systems are kept under constant surveillance","to inspect the steering gear spaces at suitable intervals","to inspect and overhaul the equipments in his charge"]
…李教授在考察日记中写道：“今天，天昏地暗，吹着强劲的东风，气温在－40℃。这时，在我的家乡珠江三角洲，早稻正在收割。”日记中记述的这天，李教授可能在（） ["撒哈拉沙漠","喜马拉雅山","北极地区","南极地区"]
营销人员应具备哪些素质？
In deciding to detain a ship or not, the PSCO would better not（） ["make his decision independently","request the owner’s representative to provide proposals","cooperate with the flag State Administration’s representatives","consult the organization responsible for issuing the relevant certificate"]
市场调研应考虑哪些因素？
产品开发建议书包括哪些内容？
