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【单选题】
Could the would-be rescuers succeed in saving the drowning boy?A.
Yes, they could. Because they were very close to the boy.
B.
Yes, they could. Because they got enough people to save the boy.
C.
No, they couldn't. Because they all were afraid of water.
D.
No, they couldn't. Because they'd never reach the boy with the water's tow.
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反馈参考答案：
举一反三
【简答题】试述下列符号的含义:C30、P8、 F150、M15。
【单选题】Which command line invocation will produce the output？（）
A.
java Test 2222
B.
java Test 1234
C.
java Test 4242
D.
java Test 4321
【多选题】Which two produce the output "one， two and three"？（）
A.
${param.num[0].[1] and [2]}
B.
${param.values[0].[1] and [2]}
C.
${param.num[0]}， ${param.num[1]} and ${param.num [2]}
D.
${param.values[0]}， ${param.values[1]} and ${param.values [2]}
E.
${param.values["num"][0]}， ${param.values["num"][1]} and ${param.values["num"][2]}
F.
${param.values.num[0]}， ${param.values.num[1]} and ${param.values.num[2]}
【简答题】什么是osi安全体系结构？
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