大脑是人的思想器官，这个器官和其他人体器官一样，是愈用愈发达，不用就______，因此应该培养孩子独

A.Compilation fails.

B.ClassC is displayed.

C.The code runs with no output.

D.An exception is thrown at runtime.

Click the Exhibit button. Given the following parameters: transmitter output (min): -2 dBm receiver input (min): -28 dBm 15216 Mux and Demux loss: 4.5 dB 16 channels maximum In which sites shown in the exhibit could the 15216 EDFAs be placed to minimize the number of EDFAs needed？（）

A. Locations B, C only

B. Locations A, B, C only

C. Locations A, B, D only

D. Locations B, C, D only

E. Locations A, B, C, D

A．300-100-100-100-100

B．300-300-100-100-100

C．300-300-300-100-100

D．300-300-300-300-100

A．1+0

B．1+1

C．1：1

D．1：N

Click the Exhibit button. A customer has several interconnected core rings (see exhibit). They want to create several irtual rings？utilizing their OC-192 backbone (nodes 1,2,3,4). What should you recommend？（）

A. PPMN with BLSR rings

B. PPMN with UPSR rings

C. 1:N protection on all core circuits

D. multi-ring interconnect with BLSR rings

A. Thin Film filter

B. Fiber Bragg Grating

C. Arrayed Wave Guide

D. Erbium fiber amplifier

A.4321

B.0000

C.An exception is thrown at runtime.

D.Compilation fails because of an error in line 18.

ar.blatz.Book com.bar.Car com.bar.blatz.Sun Which graph represents the correct directory structure for a JAR file from which those classes can be used by the compiler and JVM？ （）

A.Jar A

B.Jar B

C.Jar C

D.Jar D

E.Jar E

Mux (left side) composite output and the ONS 15216 Demux (right side) composite input, with the optical values given in the exhibit？ （）(Assume the worst case loss of 4.5 dB for 15216 200 GHz Mux/Demux and ignore power penalties or extra margin.)

A.15dB

B.17dB

C.21dB

D.26dB

E.27dB

A．120M

B．320M

C．480M

D．600M