中国宋代哲学家张载提出了“两不立,则一不可见,一不可见,则两之用息”的理论,这是()
A. 诡辩论的观点
B. 没有对立面就没有统一的观点
C. 没有双方相互依存,矛盾双方作用就会停止的观点
D. 揭示矛盾双方对立统一关系的观点
E. 形而上学的观点
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《统计法》规定:禁止利用统计调查窃取国家秘密、损害社会公共利益或者进行欺诈活动。()
A. 正确
B. 错误
采用减压方式进行分馏操作,主要目的是为了防止较重组分在高温下分解而影响产品质量和收率
A. 正确
B. 错误
Which three statements about the DHCP snooping feature on Cisco Nexus switches are true? ()
A. DHCP snooping commands are not available until the feature is enabled with the feature dhcp- snooping command.
B. When you enable the DHCP snooping feature, the switch begins building and maintaining the DHCP snooping binding database.
C. The switch will not validate DHCP messages received or use the DHCP snooping binding database to validate subsequent requests from untrusted hosts until DHCP snooping is enabled globally and for each specific VLA
D. Globally disabling DHCP snooping removes all DHCP snooping configuration on the switch.
E. Globally disabling DHCP snooping does not remove any DHCP snooping configuration or the configuration of other features that are dependent upon the DHCP snooping feature.
研究者给家兔注射链脲佐菌素(可破坏胰岛细胞)后,会发现家兔血液中哪种激素含量降低()
A. 生长激素
B. 肾上腺素
C. 胰岛素
D. 甲状腺激素