呼吸道并不仅仅是气体的通道，它还能对吸人的气体进行处理，下列_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

呼吸道并不仅仅是气体的通道，它还能对吸人的气体进行处理，下列哪一项不是呼吸道对空气的作用[ ]

A．清洁

B．温暖

C．湿润

D．杀死空气中的细菌

答案

答案：D

填空题

综合填空，根据短文内容，从方框中选择适当的单词，使短文完整，通顺，不要求改变词型。

enough, kinds, less, healthy, little, sick, energy, ways, choose, fruit

    As we know, food gives us   __1_   . We must have   _2_   food to keep us__3   . Of course, we must
also have the right   _4_    of food. We should eat more__5_   and vegetables but   _6_  meat. Different
foods help us in different__7   . If we eat too __8_   or too much food, or if we    _9   the wrong food, it
can make us   _10_   .
1       __   2   _         3 _           4   _         5
6        __ 7      _       8              9             10 _

单项选择题

热启动微机时可同时按下（）键。

A.Ctrl，Alt

B.Ctrl，Del

C.Ctrl，Alt，Shift

D.Ctrl，Alt，Del