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问题 单项选择题

（）不是微型计算机商品。

A.微型计算机主机

B.外部设备

C.选购件及软件

D.技术文档

答案

参考答案：D

选择题
Leonardo da Vinci (1452 - 1519) _____ birds kept in cages in order to have the pleasure of setting them free.

A. is said to be buying
B. is said to have bought
C. had said to buy
D. has said to have bought
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多项选择题

良性积液的特点有（）。

A.胆固醇增高

B.FDP不高

C.溶菌酶增高

D.CEA增高

E.血性多见
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