China, has the comparative advantage in the production of textile products and thus will benefit its economy by exporting these goods or exchanging these goods for the products of other nations.
A.
正确
B.
错误
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【简答题】患者女性, 28 岁,医生诊断为外阴阴道假丝酵母菌病。护士指导患者在很多治疗方法时应首选A. 广谱抗生素 B. 需同时治疗 B. 局部用 2 % ~ 4 %碳酸氢钠液冲洗阴道后阴道上药 C. 需同时治疗 D. 全身用药较局部用药好 E. 2 % ~ 4 %碳酸氢钠液冲洗阴道
【多选题】Which three IP multicast related statements are true? (Choose three.) ()
A.
Multicast addresses 224.0.1.0 through 238.255.255.255 are called globally scoped addresses. They are used to multicast data between organizations and across the Internet
B.
The multicast address 224.0.0.1 is a globally scoped address that has been reserved for the Network Time Protocol (NTP) by the IANA
C.
Multicast addresses 239.0.0.0 through 239.255.255.255 are called limited scope addresses. They are constrained to a local group or organization
D.
Multicast addresses 224.0.0.5 and 224.0.0.6 are limited scoped addresses that have been reserved for OSPF
E.
Multicast addresses 224.0.0.0 through 224.0.0.255 are used for network protocols on local LAN segments. Because they are always transmitted with a Time to Live (TTL) of 1, they are never forwarded by a router