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【单选题】
以下关于电场强度和电势的关系说法不正确的是( )A.
利用电场强度的积分可以求解场中各点的电势.
B.
场中各点的电场强度等于电势梯度的负值.
C.
电势是标量，标量的梯度是矢量，所以电场强度是矢量.
D.
电势是标量，电场强度等于电势梯度的负值，所以电场强度也是标量.
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【单选题】下列各项审计中 ,具有双向独立特征的是 ( ) prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
国家审计 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
B.
民间审计 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
内部审计 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
D.
政府审计 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【单选题】6 Q5: Which of the following statements is true?
A.
Both syntax errors and logic errors are caught by the compiler.
B.
Both syntax errors and logic errors have effects at execution time.
C.
Syntax errors are caught by the compiler. Logic errors have effects at execution time.
D.
Logic errors are caught by the compiler. Syntax errors have effects at execution time.
【单选题】______ errors are problems in the design of a program that prevent it from running as you anticipate.
A.
Application
B.
Syntax
C.
Logic
D.
Run-time
【单选题】In the following description of computer viruses , the right one is______.
A.
One of the characteristics of computer viruses is immunity.
B.
Computer viruses are small programs with logic errors
C.
Anti-virus software must be upgraded with the emergence of new viruses to improve the function of virus detection and killing.
D.
Computers infected with computer viruses are immune to the virus.
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