以下属于外电源系统部件的是()
A.GCU
B.地面电源
C.外电源接触器(EPC)、汇流条保护面板(BPP)和地面电源参数传感器
D.BTB
参考答案:C
The cake looks _____, but it tastes _____.[ ]
A. bad, good
B. bad, well
C. badly, good
D. badly, well