说明:1.
Which method must exist in every Java application?
(a) main
(b) init
(c) begin
(d) paint
Correct answer is (a)
2.
Which of the following is a valid literal of type float in <Gaziza> 在 2024-11-15 上传
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说明:介绍了RS-232到RS-485的转换,以及用此拓扑结构在工程实践中的应用-Introduced the RS-232 to RS-485 conversion, and with the topological structure of the application in engineering practice <wl> 在 2024-11-15 上传
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