中国电信考试模拟题答案4

AB.CDE61:64().71:24.1dB81:47.4dB91:810.5dB101:1613.8dB111:3217.1dB121:6420.4dB131:12823.7dB14(D)A1310nm-1490nmB1260nm-1550nmC1310nm-1650nmD1260nm-1650nm15FTTHITU-TG.65716()100N17()GJYXCH18A19B20CABC1BDB8DV23ADE4(BC)ABCDE1FBTPLC2FBTPLC341260nm1650nm5PLCFA67MODF8MODF9101911121/2:2/4/8/161121/2:32/642121/2:64LC131914SCLC1516FTTH3112.234567889101112