SDH设备时钟的性能指标中,噪声传递要求在通带内网元时钟的相位增益应不大于()DB。
A.0.05
B.0.1
C.0.15
D.0.2
参考答案:D
________ the girl is only nine, she takes care of her brothers and cooks meals every day.
A. If B. Because C. Although
儿科处方印刷用纸为()。
A.白色
B.淡绿色
C.淡黄色
D.淡红色
E.淡蓝色