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6个月小儿,有烦躁不安、多汗、夜惊、枕秃,前囟3.5×3.5cm大小,体检未发现明显骨骼畸形。 16.该患儿诊断为佝偻病初期,其参考依据是 A.临床表现 B.血钙 C.血碱性磷酸酶 D.X线骨骼改变 E.血磷 17.该患儿的实验室检查可发现 A.血钙增高 B.血磷增高 C.碱性磷酸酶增高或正常 D.PTH降低 E.以上都不是 18.在该患儿的治疗中,下列哪正确的 A .维生素 D 2 20~40IU治疗 B.抗生素治疗 C .对有并发症的应给予维生素 D 3 肌肉注射 D .给予维生素 D 2 预防量治疗 E .外科手术
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【单选题】The scientists are still working on ___ ____ new methods of reaching outer space.
A.
invention
B.
inventor
C.
invent
D.
inventing
【简答题】根据短文内容，从下面表格中选择正确的选项填入横线空格处。 A. Scientists are still working on testing them. B. So some clever farmers have solved (解决) the watermelon problem. C. Doctors might be able to use vegetables to fight can...
【单选题】(2013·青岛一模)Scientists are still wondering ________ the Egyptians built the pyramids so long ago.
A.
how it is that
B.
how is it that
C.
it is how that
D.
that how it is
【简答题】________4 Scientists are still unable to satisfactorily explain why we yawn.
【单选题】Scientists are still unable to come to a/an ______ as to the probable cause of earthquake.
A.
elaboration
B.
prediction
C.
conclusion
D.
resolution
【简答题】Today, scientists are still concerned about the _______ of some rare species of animals.
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