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问题 单项选择题 A1/A2型题

与类风湿因子特异性结合的是（）

A.自身IgG分子

B.自身IgM分子

C.自身变异性的IgE分子

D.自身变性的IgM分子

E.自身变性的IgG分子

答案

参考答案：E

解析：自身变性的IgG与类风湿因子特异性结合，形成免疫复合物。

单项选择题

Calculator is (66) for performing arithmetic operations, but that requires human intervention to alter its stored program, if any, and to initiate each operation or sequence of operations. A calculator performs some of the functions of a computer, but usually operates only with frequent human intervention.

Microcomputer’s processing unit consists of one or more microprocessors, and includes storage and input-output (67) . Personal computer primarily intended for (68) use by an individual. (69) computer can be hand-carried for use in more than one location. Minicomputer is functionally intermediate between a microcomputer and a mainframe. And supercomputer has the highest processing speeds available at a given time for (70) scientific and engineering problems.

（69）处填（）。

A．Carried

B．Traveling

C．Portable

D．Walking
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问答题

江苏省地势低平坦荡，河湖水面广阔，土壤富饶肥沃。
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