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【单选题】
2017年中国己成为《专利合作条约》框架下国际专利申请的第二大来源国,仅排在()之后。A.
英国
B.
美国
C.
法国
D.
德国
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【简答题】完形填空。 Who Is Cleverer, the Son or the Father? Mr Clarke works in a middle school. He likes reading and often 1 some books from the library. He keeps 2 to the radio every morning and reading 3 after ...
【单选题】Which one is the public distance?
A.
Up to 360 cm
B.
about 120 cm to 360 cm
C.
45 to 120 cm
D.
0 to 45 cm
【简答题】如图所示,滑块 A 、重物 B 和滑轮 C 的质量分别为 m A 、 m B 和 m C ,滑轮的半径为 R ,滑轮对轴的转动惯量 I = m C R 2 .滑 块 A 与桌面间、滑轮与轴承之间均无摩擦,绳的质量可不计,绳与滑轮之间无相对滑动.滑块 A 的加速度 a = ___________ 。
【简答题】According to Professor Hall, body distance can be divided into ( ) ( ) ( ) and public distance
【判断题】Public distance ranges from direct physical contact to a distance of about 45 centimeters.
A.
正确
B.
错误
【简答题】Translate the following paragraphs into Chinese. No one can think of Citroën car without thinking of its founder, an outstanding engineer Andre Citroën . He started a “V gear works” in 1912 and produc...
【简答题】Students need to learn how to __________ their work. (organise) 2. I think she'll be __________ as a photographer. (success) 3. This job gave her an opportunity to gain __________ experience. (value) ...
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