单选题I certify that the（）of the portable radio apparatus for survival craft，if provided，complies with the said regulations.AinfectionBfunctioningCeffectingDaffection
单选题
I certify that the（）of the portable radio apparatus for survival craft，if provided，complies with the said regulations.
A
infection
B
functioning
C
effecting
D
affection
参考解析
解析：
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