单选题In 1964 ______ of Henry Osaka Tanner’s paintings was shown at the Smithsonian Institution.A was a major collectionB that a major collectionC a collection was majorD a major collection
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单选题The ERX Edge Router is configured for PPP over Ethernet without using VLAN tagging. How many PPP over Ethernet major interfaces can be configured per port?（）A 1B 100C 2048D 4096
单选题IEEE 802.1w is a Rapid Spanning Tree Protocol （RSTP） that can be seen as an evolution of the 802.1 standard. What are the port roles described by 802.1w？（）A root port，designated port，alternate port，backup port，and disabledB standby port，alternate port，root port，and disabledC standby port，designated port，backup port，and disabledD root port，designated port，alternate port，and standby port
多选题Which three flow-control port states lead to enabled link flow control？ （）AReceive port： Enabled， Transmit port： EnabledBReceive port： Enabled， Transmit port： DesiredCReceive port： Enabled， Transmit port： DisabledDReceive port： Disabled， Transmit port： DesiredEReceive port： Desired， Transmit port： Desired
填空题The U.K. is situated in （）Europe.
填空题The population of the U.K. is more than （）million.
填空题The full title of the U.K. is the United Kingdom of （）and （）
