我国刑法在时间效力方面采用的原则是( )。
A．从旧兼从重 B．从旧兼从轻C．从新兼从重 D．从新兼从轻
参考答案：B
It isn't just big data specialists like data scientists and statisticians ______ to benefit from this boom of big data opportunities.
A．who stands
B．that stand
C．which stands
D．when stand
临时利用本务机车调车作业，应向司机发布调度命令。
