更多"You（）buy some reference books when "的相关试题:
[单项选择]When you go to the doctor he asks you to describe your（）so that he can make a diagnosis (诊断).
A. indications
B. signs
C. symbols
D. symptoms
[单项选择]No matter how old you are, when you go out into the world, it（）to hold hands and stick together.
A. would better
B. had better
C. be better
D. is better
[单项选择]When you go out into the world, watch for traffic, hold hands and（）together.
A. stick
B. stuck
C. strike
D. struck
[单项选择]Could you buy some salt on your way home? （）
A. All right.
B. Is that all?
C. Just a few.
D. Let me see.
[填空题]It is
when
you nearly lose someone
when
you become
fully
conscious of how much you value
them
.
[单项选择]What parameters must you specify when you enable EIGRP routing?（）
A. The broadcast address, and AS number
B. The network number and AS number
C. EIGRP routing, network number and passive interface
D. EIGRP routing, network number, and AS
[单项选择]You are standing the wheelwatch when you hear the cry，“Man overboard starboard side”.You should instinctively（）.
A. Give full right rudder
B. Give full left rudder
C. Put the rudder amidships
D. Throw a life ring to mark the spot
[单项选择]When you read the sailing directions, you should notice that this is one of a series of publications produced by the（）which should be consulted by users of Admiralty Charts.
A. UK Hydrographic Office
B. IMO
C. International Hydrographic Organization
D. International Association of Classification society
[单项选择]You will extinguish a fire when you remove（）.
A. nitrogen
B. oxygen
C. sodium
D. carbon dioxide
[单项选择]You are about to cross a narrow channel when you see an approaching vessel that can only be navigated safely within the channel.You should（）.
A. cross the channel as you are the stand-on vessel
B. cross only if the vessel in the channel is approaching on your port side
C. not cross the channel if you might impede the other vessel
D. sound the danger signal
[单项选择]They are two dollars each but if you buy ten, you get a（）of ten per cent.
A. discount
B. recession
C. depression
D. discharge
[单项选择]When you enter the interface command auto qos voip cisco-phone on a port at the edge of a network, how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port? （）
A. by snooping the CoS marking on the incoming frames
B. by using RTP hello messages between the switch port and the Cisco IP Phone
C. by using CDP
D. by using DHCP snooping
E. by snooping the incoming 802.1Q VLAN tag
[多项选择]Which three elements must be used when you configure a router interface for vlan trunking?（）
A. one IP network or subnetwork for each subinterface
B. subinterface numbering that matches vlan tages
C. subinterface encapsulation identifiers that match vlan tags
D. a management domain for each subinterface
E. one physical interface for each subinterface
F. one subinterface per vlan
[单项选择]When you are firing a pyrotechnic distress signal，it should be aimed at（）.
A. straight overhead
B. at the vessel whose attention you are trying to get
C. into the wind
D. about 60 degrees above the horizon
[单项选择]Be carefully when you（）the derrick.
A. operate
B. operating
C. operated
D. operates
[单项选择]Under the Pollution Regulations，when you dump garbage in to the sea you must（）.
A. notify Coast Guard or MSA
B. make an entry in the Official Logbook
C. keep a record for two years
D. No action is required if you are more than 25 miles fromland and no plastic materials are dumped
[单项选择]When you are asked to assist in accepting delivery of goods, you should（）
A. make clear of your authority
B. make friends with ships crew
C. call the first engineer if there is a problem
D. call the master if there is a problem
