问题
单项选择题 A1/A2型题
下列何种抗凝剂不适合红细胞比积测定时使用 （）
A.草酸钾
B.肝素
C.EDTA-Na2
D.双草酸盐
E.枸橼酸盐
答案
参考答案：A
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下列何种抗凝剂不适合红细胞比积测定时使用 （）
A.草酸钾
B.肝素
C.EDTA-Na2
D.双草酸盐
E.枸橼酸盐
参考答案：A
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| Mark lived in a village far away. One day he became very ill and everyone thought he would l soon. They sent for a doctor. Two days 2 the doctor came and looked over the sick man. 3 asked for a pen and some paper to write down the name of the medicine. But there was no pen 4 paper in the village, because no one could write. The doctor 5 up a piece of burnt wood from the fire and wrote the name of the medicine (药) on the 6 0f the house. "Get this medicine for him," he said, " and he will soon get 7 ." Mark's family and friends did not know 8 to do. They could not read the strange words. Then a young man 9 an idea. He took off the door of the house, put it on his carriage (四轮马车) and drove to the nearest 10 . He bought the medicine there, and Mark was soon well again. | ||||
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