A.extensive
B.expensive
C.intensive
D.expressive
[单选题]Itisquitenecessaryforaqualifiedteachertohavegoodmannersand_________knowledge.A.)extensiveB)expansiveC.)intensiveD)expensive
[单选题]When students are doing activities, the teacher walks around and provides h
[单选题]It is necessary that anyone ______exercises every day if he wishes to keep healthy.A. doB. would doC. didD. will do
[单选题]If it becomes necessary for a stand-on vessel to take action to avoid collision,she shall NOT,if possible,().A.Decrease speedB.Increase speedC.Turn to port for a vessel on her own port sideD.Turn to starboard for a vessel on her own port side
[主观题]Itmaybenecessarytostop______inthelearningprocessandgobacktothedifficultpointsinthelessons.A.)atadistanceB)atintervalsC.)atcaseD)atlength
[单选题]When it is necessary to remove a victim from a life threatening situation,the person giving first aid must ().A.Pull the victim by the feetB.Avoid subjecting the victim to any unnecessary disturbanceC.Carry the victim to a location where injuries can
[问答题]It is not necessary to do this work.
[问答题]It is necessary to take medicine on time
[单选题]It is possible,and sometimes necessary,to strengthen the deck of a vessel for carriage of deck cargo by().A . placing bunker on the deckB . building a stage on which to place the cargoC . welding steel feet to the deck,on which the cargo is placedD .
[单选题]It is necessary to remove () from the cooling spaces.A . scarB . scaleC . spurD . bilge