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【单选题】
编译一个定义了3个类和10个方法的Java源文件后，会产生多少个字节码文件，扩展名是______。A.
1个字节码文件，扩展名是．class
B.
13个字节码文件，扩展名是．class
C.
3个字节码文件，扩展名是java
D.
3个字节码文件，扩展名是class
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举一反三
【单选题】______ Chemistry is a branch of Chemistry.
A.
Applying
B.
Apply
C.
Applied
D.
Applicant
【简答题】有人说：“因为海水含盐量高，所以海水中溶氧含量比淡水的低”。你认为这种说法对不对？
【简答题】A．Chemistry isn't hard for him. B．Physics is easy for him. C．Chemistry is easier than Physics for him. D．Physics is easier than Chemistry for him.
【单选题】What is analytical chemistry?
A.
The study of how chemicals react
B.
The analysis of other chemistry studies
C.
The identification, isolation, and measurement of chemicals
D.
The most advanced form of chemistry
【单选题】—Is chemistry more difficult than physics? — No, chemistry isn't as _____ as physics. [ ]
A.
easy
B.
difficult
C.
easier
D.
more difficult
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