问题 单项选择题

单克隆丙种球蛋白病的首选检测是

A.血清蛋白区带电泳
B.免疫电泳
C.Ig定量测定
D.骨髓检测
E.免疫固定电泳

答案

参考答案:B

解析:免疫电泳是将区带电泳和免疫扩散结合起来的一种免疫学分析法。血清标本先经区带电泳将各种蛋白成分分离开,继而用各种特异性抗血清进行免疫扩散,根据M蛋白在免疫电泳中所形成的特殊沉淀弧,观察其电泳迁移位置与抗原特异性,可将M蛋白的免疫球蛋白类型和其轻链型加以鉴定,常用于单克隆丙种球蛋白病的检测。

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单项选择题

The Erie Canal was the first important national waterway built in the US. It crossed New York from Buffalo on Lake Erie Troy to Albany on the Hudson River. It joined the Great Lakes with the Atlantic Ocean. The canal served as a route over which industrial goods could flow into the west, and materials could pour into the east. The Erie Canal helped New York develop into the nation’s largest city.

The building of the canal was paid for entirely by the state of New York. It cost $ 7 143 789, but it soon gained its price many times over. Between 1825, when the canal was opened, and 1882, when toll charges were stopped, the state collected $121461891.

For a hundred years before the Erie was built, people had been talking about a canal which could join the Great Lakes and the Atlantic Ocean. The man who planned the Erie Canal and carried the plan through was De Witt Clinton. Those who were against the canal laughingly called it "Clinton’s Ditch". Clinton talked and wrote about the canal and drew up plans for it. He and Governor Morris went to Washington in 1812 to ask for help for the canal, but they were unsuccessful.

Clinton became governor of New York in 1817, and shortly afterwards, on July 4, 1817, broke ground for the canal in Rome, N.Y. The first part of the canal was completed in 1820. As the canal grew, towns along its course developed fast. The length of the canal is 363 miles.

It can be inferred that()into the Atlantic Ocean.

A. the Great Lakes flow

B. the Hudson River flows

C. Lake Erie flows

D. the Erie Canal flows