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【简答题】
Java,人为的抛出异常时,可在程序的方法头前添加( )关键字,后跟需要抛出的异常类即可抛出异常,也可在程序的方法体中,程序语句中通过添加( )关键字抛出异常。
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举一反三
【单选题】The Virgin Islands are located ______.
A.
in the Gulf of Mexico
B.
in the Pacific Ocean
C.
in the North Sea
D.
in the Caribbean Sea
【单选题】Which. of the following is NOT the reason why people prefer to use virgin' materials than use secondary ones?
A.
Production costs do not include the true costs of environmental impact.
B.
There axe subsidies to virgin materials.
C.
Using virgin materials can protect environment.
D.
The secondary materials are more expensive.
【简答题】The virgin forest with its richness and variety of trees was a veritable real treasure-house which extended from Maine all the way down to Georgia. 请将上面这段话翻译成中文，谢谢！
【简答题】教师家访时应该注意哪些问题?(参考“章节1.2.2”内容)
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