When whistle signals are used for launching lifeboats，one short blast means（）.

[单选题]When multiple routers are used in interconnected networks,the routers exchange information about（）using a dynamic routing protocolA．destination addressesB．IP addressesC．work addressesD．router addresses

[主观题]When ‘Final’ is used in class, method and property, what dose itmean?

[单选题]When I was a child I used ______ swimming in the lake.A． to goingB． goingC． to goD． go

[单选题]When a switch port is used as a VLAN trunk, which of the following trunk modes are valid? (Select all that apply.)A． BlockingB． AutoC． DesirableD． OnE． TransparentF． Learning

[单选题]When fire pumps are used for other than firefighting service，each pipe connecting the other service (except for branch lines used for deck washing) must have a（）.A . check valve installed in the lineB . shut off valve at a manifold near the pumpC . q

[单选题]Wale shores would be used when drydocking a vessel with（）.A . tumble homeB . excessive deadriseC . excessive trimD . a list

[单选题]22．1 used to love this film when I was young，but I _________ it that way any more．A． don- t feelB． didn- t feelC． haven- t feltD． hadn- t felt

[单选题]Steve used to [haunt]the movie theaters when he was young.A.appearB.embarkC

[单选题]The word“after” will be understood to（ ）the datementioned when used to dete

[单选题]The word“after” will be understood to（ ）the datementioned when used to dete