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【简答题】
普通螺纹的牙型角为 度,锯齿形螺纹工作面的牙侧角为 度,非工作面的牙侧角为 度。 (填小写数字)
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【单选题】Reduce the distance between vessels to 5 cables
A.
The distance between vessels shall be decreased to 5 miles
B.
The distance between vessels shall be decreased to 5 meters
C.
The distance between vessels shall be decreased to 0.5 miles
D.
The distance between vessels shall be decreased to 0.5 kilometers
【单选题】According to the passage,
A.
the distance between people can be fixed.
B.
the distance kept between people is a visible wall.
C.
the distance between people varies from culture to culture.
D.
the distance between people is somewhat fixed.
【简答题】It seems that telephone shortens the distance between people, and people ________________ (彼此可以保持联系) by it.
【单选题】A, B, and C are points on a line. The distance between A and B is twice the distance between A and C. The distance between C and B is 10. Column A Column B The distance between A and B 10
A.
if the quantity in Column A is greater
B.
if the quantity in Column B is greater
C.
if the two quantity are equal
D.
if the relationship cannot be determined from the information given
【简答题】A．The distance that a food product travels to a market. B．The distance between UK and other food producing countries. C．The distance that a food product travels from one market to another. D．The dista...
【单选题】Keep a distance of 0.5 miles between vessels
A.
The distance between vessels shall be at 0.5 meters
B.
The distance between vessels shall be at 0.5 kilometers
C.
The distance between vessels shall be at 5 cables
D.
The distance between vessels shall be at 5 kilometers
【单选题】What is the distance between the Earth and the two areas of radiation?
A.
Between 12 and 21 miles
B.
1,000 miles
C.
150 miles
D.
1,500 miles
【单选题】Increase the distance between vessels to 5 cables
A.
The distance between vessels shall be increased to 5 miles
B.
The distance between vessels shall be increased to 0,5 miles
C.
The distance between vessels shall be increased to 5 meters
D.
The distance between vessels shall be increased to 0,5 kilometers
【简答题】包埋材料按用途分类分为 、 、 、 。
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