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【单选题】
Your ARPA has been tracking a target and has generated the targets course and speed．The radar did not receive a target echo on its last two scans due to the weather．What should you expect under these circumstances ________．A.
The ARPA will generate data as if the target was still being tracked by radar
B.
The ARPA will give an audible and/or visual lost target alarm
C.
The ARPA will generate data based on sea return echoes from the vicinity where the target was lost
D.
The ARPA has lost all memory of the target and must recompute the target data
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【单选题】int x= 4; System. out. println(x++); System. out. println(++x);
A.
4,6
B.
5,5
C.
4,5
D.
5,6
【多选题】下列内容可以作为红外探测器的工作条件的内容包括
A.
权重立体角和有效面积
B.
入射辐射的光谱分布
C.
工作温度与背景辐射
D.
偏置电源、信号调制频率、乃至入射辐射功率
【简答题】下列选项与2012年1—10月彩票销售量变化趋势大体相符的是（ ）。 查看材料
【简答题】根据句子的意思，补全单词。 1. The little boy often _ _ to sleep on the bus when he sees old men beside him. 2. The little girl has up all her money so she has to walk home. 3. Because your brother is a boy, his fr...
【单选题】下面的程序执行后,文件testt.t中的内容是 #include void fun(char *fname,char *st) {FILE *myf;int i; myf=fopen(fname,"w"); for(i=0;i
A.
hello,
B.
new worldhello,
C.
new world
D.
hello, rld
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