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CEC
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考题
设甲土的CEC为8cmol/kg,交换性Ca2+为6cmol/kg,乙土的CEC为30cmol/kg,交换性Ca2+为10cmol/kg,则Ca2+的利用率是()。A、甲乙B、乙甲C、一样大D、无法确定
考题
When considering migrating a POWER6 server with PCI-X and PCIe adapters to a Power 720, which statement is true?()A、PCIe adapters are supported only in I/O drawersB、PCI-X adapters are supported in both the CEC and in I/O drawersC、PCI-X adapters are supported in the CEC; PCIe adapters are supported in 12X I/O drawersD、PCIe adapters are supported in the CEC; PCI-X adapters are supported in 12X I/O drawers
考题
关于土壤中交换性阳离子分析项目的选择,下列说法中错误的是()A、酸性土:除CEC外,一般还要测定交换性H+、Al3+,或者测定交换性Ca2+、Mg2+ B、中性土:除CEC外,一般还要测定交换性Ca2+、Mg2+C、石灰性土壤:除CEC外,一般还必须测定交换性Ca2+、Mg2+D、盐碱土:除CEC外,一般只测交换性Na+,以求得碱化度
考题
In BGP MPLS VPNs, which router maintains VPN-specific routing tables, also known as VRFs?()A、PB、CEC、PED、SP
考题
问答题简述影响土壤CEC的因素。
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