毛泽东认为，指导革命和建设要把立足点放在（） ["完全拒绝外援","争取外援基点","本国人民自己力量的基点上","既自力更生，又依靠外援"]
What is true of standard access control lists when applied to an interface to control inbound or outbound traffic？（） ["The best match of the ACL entries will be used for granularity of control.","They use source IP information for matching operations.","They use source and destination IP information for matching operations.","They use source IP information along with protocol-type information for finer granularity of control."]
为使发动机进气更充分，应随转速的提高适当增大（） ["进气提前角","进气迟后角","排气提前角","排气迟后角","气门重叠角"]
为什么需要设置WINS数据库的复制？
通常含碳量C%表示煤的变质程度：（）。 ["变质程度高→氧氢含量低→含碳量高","变质程度低→氧氢含量高→含碳量高","变质程度低→氧氢含量低→含碳量高"]
旅客运输产品的特点是无形性、（）、时空性
