《金融机构反洗钱规定》要求金融机构应该保存账户资料和交易记录的年限为（）
A. 1年
B. 2年
C. 3年
D. 4年
E. 5年
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A new Aironet 1200 series AP has been installed in the Company WLAN. What happens when this device is connected to the LAN， with a default configuration？（）
A. The access point will attempt to download an encryption key from the nearest wireless server.
B. The access point makes several attempts to get an IP address from the DHCP server. If the access point does not receive an address， it assigns itself the IP address 10.0.0.1 for 5 minutes.
C. The access point will attempt to connect to the nearest wireless server using LEAP authentication.
D. The access point requests an IP address from the DHCP server. If the access point does not receive an address， it continues to send requests indefinitely.
E. None of the other alternatives apply
下列反应能够进行的是（）。
A. Na2S04（固体）+盐酸
B. Mg+H2S04（稀）
C. Ag+CuCl2溶液
D. NaCl溶液+NH4N03溶液
水工观测电缆使用温度为－25～60℃，承受的水压力为（）时，绝缘电阻应≥（）。
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