【单选题】The passage implies that the strain on freshwater aquifers caused by poor irrigation patterns may be reduced by all of the following methods EXCEPT
A.
Government compensation programs for surplus
E.
Changes in patterns of food consumption
【单选题】我国的电气设备大都采用铜排或铝排实现螺栓加簧圈连接,连接点的温度检测由( )来实现。
【判断题】液压马达的转速n= ,因此其转速可以无限调高。液压马达的转速n= , 但其转速不可以无限调高。
【单选题】It can be inferred from the passage that foraminifers are a ______.
A.
kind of weather pattern
C.
species of tundra plant
D.
type of miniature penguin
【判断题】"大气环境"专门用于制作"雾"和"体积光"特效。
【判断题】液压马达的转速n= ,因此其转速可以无限调高。