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单选题
required是()
A

必填字符串校验器

B

表达式校验器

C

必填校验器

D

正则表达式校验器


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考题 Lifeboat winches on a ship are required to be inspected and an entry made in the logbook. What should this entry include?A.The time required to lower a lifeboatB.The time required to raise a lifeboatC.The date of inspection and condition of the winchD.All of the above

考题 At least one reinspection shall be made on each vessel holding a Certificate of Inspection valid for two years. This inspection shall be held between the tenth and fourteenth months of the duration period of the certificate and shall be ______.A.at the discretion of the inspector,but in no greater detail than required for original certificationB.at the discretion of the inspector,but in no lesser detail than required for original certificationC.generally similar in scope to the inspection required for certification,but in less detailD.equivalent to the inspection required for certification

考题 A stand-on vessel is ______.A.required to give way in a crossing situationB.required to sound the first passing signal in a meeting situationC.free to maneuver in any crossing or meeting situation as it has the right-of-wayD.required to maintain course and speed in a crossing situation but may take action to avoid collision

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考题 A vessel restricted in her ability to maneuver is one which______.A.through some exceptional circumstance is unable to maneuver as required by the RulesB.from the nature of her work is unable to maneuver as required by the RulesC.due to adverse weather conditions is unable to maneuver as required by the RulesD.has lost steering and is unable to maneuver

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考题 单选题Which typical enterprise campus requirement ensures that the network supports the required applications and that data flows within the required time frames?()A  availabilityB  performanceC  functionalityD  manageability

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考题 单选题The doctrine seems so obviously cruel ______ no further refutation.A as to requireB to requireC being required D having required