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国家知识产权局主页的专利检索页面有( )个检索框

单选题
2021-09-02 13:58
A、8
B、10
C、16
D、20
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正确答案
C

试题解析

感兴趣题目
()shall be liable for loss of and damage to the Vessel and/or goods arising or resulting from inaccuracies in stating the description,quantity,weight,measurement or contents.
我们经常在搜索时使用组合关键词来提高检索的效率,下列表达式中,具有相同搜索效果的是()。 ①深圳夜景 ②深圳OR夜景 ③深圳-夜景 ④深圳+夜景
Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo,without the authorization or privity of the Shipowner or his agent,is().
(), or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.
A salvor may be()the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.
The () is used for hauling in or letting out the wires or ropes.
Vessels must be()valid certificate of nationality or certificated of registry or license.
When loading or discharging dry mud or cement,crew members should use goggles and().
Effects which are dutiable or subject to prohibitions or restrictions should be declared in ().
逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
布尔逻辑具体检索时,是通过三个布尔运算符来实现其功能的:AND、OR、()。
相关题目
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

如果分别以检索词a、b、c在某数据库的关键词字段进行检索,检索式a or b and c得到检索结果数量最少。
国家知识产权局主页的专利检索页面有( )个检索框
检索式“转基因食品 or 安全”的基本含义是( )
检索式“禽流感 or 预防”的基本含义是( )
检索式“转基因食品 or 安全”不包括的含义是( )
国家知识产权局主页的专利检索页面有()个检索框。
Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
翻译:With Average or With Particular Average(WA or WPA)()
常用布尔算符有:and、or、not等,当采用同义词进行检索时应当选用的算符是?
当一个检索表达式含有多个布尔算符时,执行的顺序为NOT优先运算,AND其次,OR最后。如要改变,可用()改变运算顺序,将需要优先运算者置于其中。
在搜索引擎中输入检索式:“公司OR企业”表示检索结果()
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