46．There are so many kinds of MP5 in the shop． We can-t decide _________ ．

A． what to buy

B． to buy what

C． which to buy

D． to buy which

[单选题]MP5型滤毒罐，白色，防（）A . CO2B . H2SC . SO2D . CO

[单选题]如果想要通过MP5来拨打电话，需要打开（）A . 蓝牙B . 收音机C . 导航D . USB

[单选题]MP5微型冲锋枪是由（）研制的微型武器。A . 英国B . 德国C . 美国D . 俄罗斯

[单选题]虽然人们对于MP4和MP5不太了解，但是人们可以根据MP3的特征和已有经验推断MP4和MP5的功能、质量、性能等指标，这是利用了（）。A . 感觉的舒适型B . 感觉的适应性C . 知觉的错觉现象D . 思维的间接性

[单选题]Cocktail is [blended]by many kinds of wines.A.mixedB.madeC.cookedD.eaten

[单选题]Many kinds ofanimals have [vanished] from the earth.A.developedB.disappeare

[单选题]With so many eyes ______on him, he was too nervous to speak.A． fixedB． fixingC． to fixD． being fixed

[单选题]So many directors_________ , the board meeting had to be put off till next Monday.A． were absentB． being absentC． been absentD． had been absent

[主观题]With so many people to care about her, she feels very happy.

[单选题] (71) has many elements: text, audio sound, static graphics images, animations, and full-motion video.(71) A．MultimediaB． DatabaseC． FileD． Document