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【单选题】
下列句中加点词语 不能 用括号内的词语代替的一项是A.
成群的露脊鲸把尾鳍高高举出水面,正对着大风,以便像船帆似的让大风推着它们, 得意扬扬 (得意忘形)地 “驶”向海岸。
B.
单独游戏时,动物常常 兴高采烈 (兴致勃勃)地独自奔跑、跳跃,在原地打圈子。
C.
在动物身上,无论从形态结构、生理过程,还是行为方面去分析,尽可能节省能量的例子 比比皆是 (极其常见)。
D.
这几种假说,哪一种更有道理?动物的游戏,究竟是为了 “演习”,为了“自娱”,为了“学习”,还是为了“锻炼”?研究者们 各执己见 (各执一词),众说纷纭。
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【简答题】下位学习
【单选题】What is the relationship between present value and future value interest factors?
A.
The present value and future value factors are equal to each other.
B.
The present value factor is the exponent of the future value factor.
C.
The future value factor is the exponent of the present value factor.
D.
The factors are reciprocals of each other.
E.
There is no relationship between these two factors.
【单选题】The(74)has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.
A.
application
B.
information system
C.
network
D.
operating system
【单选题】The government's present value budget constraint states that
A.
taxes must equal government spending in each period.
B.
the present value of government spending must be equal to the present value of consumers' disposable incomes.
C.
the present value of government spending must be equal to the present value of taxes.
D.
the government may run deficits each and every year, as long as the deficits are sufficiently small.
【简答题】调整现值法(adjusted present value)
【简答题】某32位计算机采用二级页表的分页存储管理方式,按字节编址,页大小为4KB,页表项大小为4B。某进程的页表内容如图所示,图中的数字为十进制。请回答以下问题: (1) 逻辑地址结构中,页内地址占___位,二级页号(外层业内地址)占____位,一级页号(外层页号)占______位。 (2) 计算十六进制逻辑地址00402FA5对应的十六进制物理地址。
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