数据科学家与传统专家之间应该是一种()关系。
A、上下级
B、对立
C、竞争
D、合作
参考答案:D
心血虚多见的脏腑是()。
A.心和脾
B.肝和脾
C.心和肾
D.心和肝
E.脾和肾
VHF Channel 6 is used exclusively for what kind of communications?()
A.Radio checks and time checks
B.Inter-vessel safety and search and rescue
C.Working with helicopters
D.Radio direction finding