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问题 选择题
一只手机电池的背面印有如图所示的一些符号，另外在手机说明书中还写有“通话3小时，待机100小时”。则该手机通话和待机时消耗的功率分别约为（   ）

A．1.8 W、5.4×10－2 W

B．0.6 W、1.8×10－2 W

C．3.6 W、0.108 W

D．6.48×103 W、1.94×102 W

答案

答案：B

判断题

对于业务量较少的账户，会计软件可以提供会计账簿的满页打印输出功能。 ( )
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单项选择题 共用题干题

VRML is a（1）for 3D multimedia and shared virtual worlds on the WWW. In comparison to HTML, VRML adds the next level of interaction, structured graphics, and extra（2）（z and time） to the presentation of documents. The applications of VRML are（3）,ranging from simple business graphics to entertaining WWW page graphics, manufacturing, scientific, entertainment, and educational applications, and 3D shared virtual worlds and communities. X3D is the name under which the development of VRML is continued. X3D is based on XML and is backwards（4）with VRML. Furthermore, it is componentized, profiled, and extensible, which makes it possible to use X3D in very different（5），from high-end visualizations to lightweight applications.

空白（3）处应选择（）

A.broad

B.implicit

C.explicit

D.special
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