听力原文: The Eskimos need a great many different things to survive. To make a snow house they need a special knife, shaped something like a cutlass, to cut the snow blocks. For the bed platform. they need layers of heavy skins and furs and poles and brush to lay underneath. They need a deerskin blanket to cover the whole family at night. Then they need a set of short poles to make a frame. over the lamp for hanging the pot and for drying clothes. Flint and pyrite are needed to strike a spark to light the fire, and a special moss is needed to make wicks for the lamp. Then people need bone picks to take the hot meat out of the stew pot and cups to drink the hot soup. For melting snow or fresh water ice for drinking, they keep skin buckets on the platform. near a lamp. For a window in the house, they need a clear sheet of fresh water ice.
(23)
A.They need layers of skins.
B.They need a great many poles.
C.They need a special knife.
D.They need many deerskin blankets.
第1题
我国汉族人中RH(D)抗原阴性者约占
A、0.3%
B、0.4%
C、0.5%
D、0.6%
E、0.7%
第3题
A.[0.4 0.3; 0.6 0.6]
B.[0.4 0.6; 0.2 0.9]
C.[0.8 0.5; 0.3 0.6]
D.[0.7 0.5; 0.3 0.6]
第4题
A.含D抗原者称为Rh阴性
B.即使很少量的Rh阳性红细胞就可使Rh阴性者产生抗D抗体
C.已致敏的Rh阴性者怀孕Rh阳性胎儿时,其抗Rh IgG抗体就会通过胎盘引起严重的新生儿溶血病
D.西方人Rh阴性者占15%,我国汉族阴性者占0.3%
E.当已致敏的Rh阴性者接受Rh阳性红细胞时就可能因过敏反应而死亡
第5题
A.Rh阴性母亲,再次孕育Rh阳性胎儿时,可引起胎儿或新生儿溶血反应
B.含d抗原者Rh阳性,不含d抗原者为Rh阴性
C.Rh阴性者,首次接受Rh阴性血,可不发生溶血反应
D.汉族人中Rh阳性率为99%,少数民族中Rh阳性率相对较低
E.临床上Rh血型引起的溶血反应常以高胆红素溶血反应为特征
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