在固定板零件两侧侧壁的加工中选用了φ16mm的高速钢立铣刀，加工中每次铣削侧壁的深度是0.2mm，主轴的转速是800转/分钟，进给速度是150mm/分钟。
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The expression "keep a stiff upper lip", refers to a trait that the British value highly, A stiff upper lip means
A. avoid insulting other people
B. death begins in the mouth
C. face the troubles of life with calmness
D. people who tell lies reveal it in their shaking lips
The earliest known inhabitants of the British Isles were the
Anglo-Saxons
B. Celtics
C. Romans
D. Normans
Hadian's Wall was built by
A. The Scottish
B. The English
C. The Celtics
D. The Romans
Three of these statements are true of KIng Henry VIII. One of them is false. Mark the FALSE one.
A. King Henry VIII wanted to divorce his first wife because she never gave birth to a son..
B. King Henry VIII added Scotland to the English kingdom.
C. King Henry VIII took the English churches out of the Roman Catholic Church.
D. King Henry VIII was the second Tudor king of England.
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