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【单选题】
某人持有一张带息票据,面额2000元,票面利率5%,持票90天,到期可获( )利息。A.
100元
B.
9000元
C.
25元
D.
50元
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【单选题】Space-Age Archeology It's a strange partnership, but a very effective one: Satellites and space-shuttle-carried radar are helping archeologists. How? By 'seeing' through sand or through treetops to lo...
A.
a new stretch of the Sahara desert.
B.
traces of ancient riverbeds under the Sahara Desert.
C.
some traditional archeological tools in the Sahara Desert.
D.
a mountain beneath the Sahara Desert.
【单选题】Parents have to be able to to be , to go with their kids, and also give them the room to grow.
A.
responsible
B.
strict
C.
flexible
D.
careful
【单选题】小儿1岁未接种过卡介苗,PPD阳性则提示
A.
近2～3周内感染结核
B.
体内已有免疫力，不会再感染结核
C.
体内有活动结核
D.
受过结核菌感染，不一定有活动结核
E.
对结核无免疫力，不一定有活动结核
【单选题】Space-Age Archeology It's a strange partnership, but a very effective one: Satellites and space-shuttle-carried radar are helping archeologists. How? By 'seeing' through sand or through treetops to lo...
A.
a new stretch of the Sahara desert
B.
traces of ancient riverbeds under the Sahara Desert
C.
some traditional archeological tools in the Sahara Desert
D.
a mountain beneath the Sahara Desert
【简答题】指令字长决定于 ______、_______和操作数地址的个数。
【单选题】Why did the governments of America and the Soviet Union fund the study of nuclear physics rather than underwater archeology?
A.
Because they assumed that studying underwater archeology was not profitable
B.
Because they assumed that studying nuclear physics would enable them to develop nuclear weapons that could help win wars.
C.
Because they assumed that studying unclear physics would be beneficial in terms of producing electricity.
【单选题】下述关于指令字长度的描述中正确的是（）。
A.
计算机系统中指令字长度是固定不变的
B.
计算系统中指令字长度等于机器字长
C.
指令字长度是由操作码的长度、操作数地址的长度和操作数地址的个数决定的
D.
计算机系统中指令字长度要小于机器字长
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