The operational test for the HFS-900D transceivers is a BITE test which does a check of the internal functions of the HF transceiver. HFS-900D收发器的操作测试是一个BITE测试，它对HF收发器的内部功能 进行检查。
A.The operational test of HFS-900D transceivers is internal functions check of the HF transceiver and it is a BITE test. B.The BITE test for the HFS-900D transceivers is the operation test that does the inner check of the HF transceiver. C.The check of the internal functions of the HF transceiver is a BITE test related to HFS-900Dtransceivers.正确答案A
