【单选题】在等距投影图上,非投影中心点的长度变形为
【单选题】患者,女性,28 岁,已婚。因反复月经过多、经期过长致头昏、疲乏无力入院。护理体检:慢性面容,睑结膜苍白,皮肤干燥、无光泽,心率 102 次/分。红细胞 2.9×10 /L,血红蛋白 60g/L,白细胞和血小板正常。诊断贫血最可靠的指标是( )
【单选题】患者,女性,28岁,已婚。因反复月经过多、经期过长致头昏、疲乏无力入院。护理体检:慢性面容,睑结膜苍白,皮肤干燥、无光泽,心率102次/分。红细胞9×1012/L,血红蛋白60g/L,白细胞和血小板正常。诊断贫血最可靠的指标是()
【简答题】充裕要素(abundant factor)
【单选题】The Heckscher-Ohlin theory predicts that the opening of trade between a land-abundant country and a labor-abundant country should result in:
A.
higher rents and wages in both countries.
B.
lower rents and wages in both countries.
C.
higher rents in the labor-abundant country and higher wages in the land-abundant country.
D.
higher wages in the labor-abundant country and higher rents in the land-abundant country.
【单选题】在等距投影图上,非投影中心点的长度变形为
【单选题】______ the program, they have to stay there for another two weeks. [ ]