. z
Equal to ()
A.-2-3 pounds. -2+3iC.2-3iD.2+3i
Test center: multiplication and division in the form of complex algebra.
Special topic: number system and the expansion of complex numbers.
Analysis: Simplify Z directly by multiplication in the form of complex algebra, and its yoke can be found.
Solution: ∫z =(3-2i)I = 2+3i,
∴.z=2？ 3i。
So choose: C.
Comments: This question examines the multiplication operation in the form of complex algebra and the basic concepts of complex numbers, which is the basic question. (20 14? Fujian) The front view of a space geometry is a triangle, so the geometry can't be () A. Cylinder B. Cone C. Tetrahedron D. Prism test site: Restore the physical diagram from three views. Special topic: computational problems; Spatial positional relationship and distance. Analysis: directly judge the shape of geometry from three views: front view, side view or top view. Solution: Solution: The front view of the cylinder is rectangular.
So choose: A Comments: This question examines the three views of simple geometry, logical reasoning ability and spatial imagination, and is the basic question.