血红蛋白尿的颜色是
A.乳白色B.黄褐色C.棕色D.黄色E.酱油色
参考答案:E
Have you heard the news a high-speed railway between Huangshan and Hangzhou will be under construction soon?
A.that
B.which
C.whether
D.whatever
患者,男性,上颌双端游离缺失,铸造支架义齿修复,在制作金属与塑料结合部时,内外阶台的角度最佳为()。
A.0°
B.45°
C.90°
D.135°
E.180°