在为客房部清洁设备建档时，吸尘器的编号为C5-2-4，其中（）表示设备编号。
A、字母C
B、数字5
C、数字2
D、数字4
参考答案：D
When Michael Phelps won another gold medal at the National Aquatics Center, _____ was likely that
his dream of getting 8 gold medals at the Beijing Olympic Games was to be realized.[ ]
A. which
B. that
C. it
D. he
在铅缆与塑缆复接时，可用（）为芯线驱潮。
A.自然日晒
B.热炉烘烤
C.电热吹风
D.干布擦拭
