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【单选题】
According to BBC History Research, what has caused the problems for Titanic’s turning ability?A.
Lack of technical development.
B.
Construction of the rudders on the Titanic.
C.
The size of the Titanic.
D.
Shortage of skilled riveters.
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【单选题】In the morning he ______.
A.
takes a nap
B.
visits friends
C.
does some exercises
D.
goes to a movie
【简答题】舞蹈的基本功训练有哪些?
【简答题】听音填空。 1. Did Santa ___________ gifts? 2. This morning we ___________ our gifts. 3. He ___________ bring gifts. 4. I don't ___________ so. 5. Lynn ___________ a gift.
【单选题】_____ Monday morning he wrote an article on grammar. _____ Monday morning he had written an article on grammar.
A.
By
B.
On
C.
At
D.
／
【简答题】CAD/CAM是指以计算机为主要技术手段来生成和运用各种（）和（）并进行产品的设计和制造。
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