商用房为一手房的,该房产应为已封顶的房屋,并取得合法销售资格。()
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常用的粒子径的测定方法有()、()、沉降法、比表面积法、筛分法等。
A chart projection depicting the poles and a small area on either side of a connecting meridian,that is sometimes used for star charts,is the().
A. azimuthal gnomonic projection
B. Lambert conformal projection
C. transverse Mercator projection
D. polyconic projectio