The ()(千斤滑车) can run the gooseneck.
A、heavy derrick
B、pulley block
C、topping lift block
D、guy tackle
A、heavy derrick
B、pulley block
C、topping lift block
D、guy tackle
A、can you go to the beach B、can you run the vessel upon a beach to prevent its sinking in deep water C、can you handle the vessel along the beach D、can berth along the beach
A、Run the script with an 'sh -x' in front. B、Run the script with a 'ksh -v' in front. C、Type debug into the command line before running the script. D、Type 'set -x' into the command line before running the script.
A、As the root user from serverA run the command rhost serverB B、As the root user from serverA run the command rlogin serverB C、As the desired user from serverB run the command rhost serverA D、As the desired user from serverA run the command rlogin serverB
A、Login as the user and run 'echo $ENV'. B、Login as root and run the 'env' command. C、Login as root and 'cat /etc/environment'. D、Login as the user and run the 'env' command.
A、Do not pass a user variable in the WHERE clause because it limits the ability of the optimizer to use indexes B、Add an index on the objective column so that is can be used in both the WHERE and GROUP BY operations C、Drop the run_2 index because it has caused a conflict in the choice of key for this query D、Execute the run_2 index because it has caused a conflict in the choice of key for this query E、Add a composite index on (run,objective,stage) to allow the query to fully utilize an index
A、Specific addresses can be selected using a prefix list. B、Specific addresses can be selected using a route map. C、Specific addresses cann ot be selected for importation into the OSPF process. D、Specific addresses can be selected using an ACL.