ERC（empty   return    charge）是（）

[单选题]emptyA.toilet B.dozen C.general D.connectemptyA．toilet Ｂ．dozen Ｃ．general Ｄ．connect

[单选题]下列函数结果为.T.的是A）EMPTY（SPACE（5）） B）EMPTY（.NULL.）C）ISNULL（”） D）ISNULL（{}）

[单选题]The officer in charge of the engineering watch shall notify the chief engineer without delay ____.A．in any emergency or if in any doubt as to what decision or measures to takeB．in the event of any impending action in machinery spaces that may cause r

[单选题]The officer in charge of the engineering watch shall ensure that all machinery involved with the maneuvering of the ship can immediately be placed in the __ of operation when notified that the ship is in congested waters.A．manual modeB．automatic mode

[单选题]In a （） engine the charge of air in the cylinder before compression commences is above atmospheric pressure.A . pressure chargedB . naturally aspiratedC . contaminatedD . high speed diesel

[主观题]When will an Engineer Officer in charge of watch call Chief Engineer?

[单选题]The Master or person in charge on a ship shall insure that line throwing equipment is not operated（）.A . during a rain stormB . in an explosive atmosphereC . near a lifeboat stationD . by other than senior rig personnel

[单选题]A charge of fresh air is drawn into the engine cylinder and then （） by the moving piston（） very high pressure.A . pressed；toB . pressurized；withC . pushed；inD . compressed；to

[单选题]（）is the charge for shipping goods.A . BillB . OrderC . FreightD . Payee

[单选题]C．ould I speak to ______ is in charge of International Sales please?A． who B. whatC． whoeverD. whatever