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【单选题】
He asked his father ________?A.
where it happens
B.
where did it happen
C.
how it happened
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【判断题】The introduction of printing into England by William Caxton marked the beginning of Middle English period.
A.
正确
B.
错误
【单选题】The printing press was introduced to England in ________ by William Caxton, who brought standardization to English.
A.
1066
B.
1476
C.
1604
D.
1755
【单选题】The printing press set up by William Caxton in 1476 shows the beginning of .
A.
Old English
B.
Middle English
C.
Modern English
D.
none of the above
【简答题】流体在钢管内作湍流流动时,摩擦系数λ与 和 有关;若其作完全湍流(阻力平方区),则λ仅与 有关。
【简答题】William Caxton published about ____ books, ___ ofwhich were translated by himself.
【简答题】流体在钢管内作完全湍流流动时,摩擦系数λ仅与( )有关
【单选题】The printing press was introduced to England by William Caxton during the period of ______.
A.
Old English
B.
Middle English
C.
Modern English
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