The weather was bad for some weeks, ___ the progress in the building of the power station slowed down.[ ]

A. in case

B. so that

C. in order that

D. so long as

同步状态信息编码中，1011代表（）

A.1级时钟信号

B.2级时钟信号

C.3级时钟信号

D.SDH设备时钟信号