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【单选题】
配位滴定中用EDTA滴定Ca2+、Mg2+,消除Fe3+干扰应采用:( )A.
加NaOH
B.
加抗坏血酸
C.
加三乙醇胺
D.
加KCN
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】RESULT OF SEARCH NEGATIVE means ______.
A.
the search has found nothing
B.
the derelict has been found
C.
the derelict has been located
D.
the derelict has been sighted
【单选题】如虚拟交换机本身未配置为可使用特定的 VLAN,与该虚拟交换机相连接的网段由哪一个 VLAN 决定?
A.
分配给ESXi上行链路端口的VLAN
B.
分配给逻辑交换机上行链路端口的VLAN
C.
分配给物理上行链路端口组的VLAN
D.
分配虚拟商品组的VLAN
【单选题】Unlit derelict vessel adrift in vicinity of North Rocky Island at 0250 hours local time
A.
Dangerous wreck is reported to be in vicinity of North Rockly Island
B.
Unlit derelict vessel is reported to be in vicinity of North Rockly Island
C.
Leaking pipeline is reported to be in vicinity of North Rockly Island
D.
Hazardous mine is reported to be in vicinity of North Rockly Island
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