arm
pitch
gage
rivet distance
第1题：
The connection between two networks to form. an internet is handled by a machine known as a ______．
A．bridge
B．client
C．router
D．switch
第2题：
The distance between any two meridians measured along a parallel of latitude and expressed in miles is the ______.
A.difference in longitude
B.mid-longitude
C.departure
D.meridian angle
第3题：
A.bridge
B.server
C.router
D.switch
第4题：
The connection between two networks from an intemet is handled by a machine known as a（）
第5题：
For an upright vessel, draft is the vertical distance between the keel and the ______.
A.waterline
B.freeboard deck
C.plimsoll mark
D.amidships section
第6题：
The EMP table has some discrepancy in data entry with a particular employee ID. You execute the query as shown in the Exhibit to retrieve all versions of the row that exist between two SCNs.View the Exhibit.Which two statements about the results of the query shown in the Exhibit are correct?（）
A. The LAST_SCN value in the first row is NULL, which means that the versions of the row still exist at SCN 6636300. LAST_SCN
B. The LAST_SCN value in the second row in NULL, which means that the version of the row still exists at SCN 6636300.
C. The LAST_SCN value in the third row is 6636280, which means that the version of row exists above SCN 6636280.
D. The LAST_SCN value in the second row is NULL, which means that the version of the row no longer exists because it was deleted. LAST_SCN
第7题：
Which statement concerning current is TRUE ________．
A.Current can be determined by measuring the direction and distance between simultaneous EP and DR positions
B.The drift of the current should be averaged out on a one hour basis
C.After the current is determined，it should not be used for further plotting because it is an unknown variable
D.The distance between a simultaneous DR position and fix is equal to the drift of the current
第8题：
A.the;不填
B.the;an
C.不填;an
D.不填;不填
第9题：
线间距离 distance between tracks
第10题：
Which of the following is the definition of CAS latency？（）