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问题 单项选择题

计算机之所以能够实现连续运算，是由于采用了( )工作原理。

A．布尔逻辑

B．存储程序

C．数字电路

D．集成电路

答案

参考答案：B

解析： 由于计算机采用了存储程序工作原理，使得计算机能够实现连续运算。

单项选择题

The "Karat" marking on jewelry tells you what proportion of gold is mixed with other metals. If 14 parts of gold are mixed with 10 parts of base metal, the combination is called 14-Karat (14K) gold. The higher the Karat rating, the higher the proportion of gold in the object. The lowest Karat gold that can be marketed in the United States is 10-Karat gold. Jewelry does not have to be marked with its Karat quality, but most of it is. If there is a Karat quality mark, next to it must be the U.S. registered trademark of the person or company that will stand behind the mark, as required by the National Gold and Silver Stamping Act.

This paragraph serves the consumer as________.

A．important buying information

B．a challenge to buy more gold

C．a debate over gold prices

D．advice about buying silver
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单项选择题 A2型题

患者肠道失固，症见久泻久痢者，诊其为寒热错杂，虚实夹杂证。治疗应首选的方剂是（）

A.乌梅丸

B.芍药汤

C.温脾汤

D.阳和汤

E.痛泻要方
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