疏丛型
JZ-7型空气制动机机能检查时，自阀、单阀手柄均置运转位，工作风缸压力指示值应为（）。 ["400kPa或600kPa","500-100kPa或650kPa","500kPa或600-100kPa","450kPa或600kPa"]
为什么说中国城市化的动力主要是政治性的而非经济性的？
同步培养
You need to configure fine-grained access control to external network resources from within your database. You create an access control list (ACL) using the DBMS_NETWORK_ACL_ADMIN package. Which statement is true regarding the ACL created?（） [" It is a list of remote database links stored in the XML file that are available to the users of the database.","It is a list of users and network privileges stored in the XML file according to which a group of users can connect to one or more hosts."," It is a list of users and network privileges stored in the data dictionary according to which a group of users can connect to one or more hosts."," It is the list of the host names or the IP addresses stored in the data dictionary that can connect to your database through PL\/SQL network utility packages such as UTL_TCP."]
了解国际电子商务立法概况有哪些作用？
