大黄和虎杖都具有的功效是（） A.活血、通便、解毒、止咳 B.活血、利湿、解毒、

对于建筑公司的主张，劳动行政主管部门应如何认定( )

A．公司让全体民工对偷窃和毁坏设备者造成的损失承担连带责任，于法无据

B．全体民工有义务与公司协商确定赔偿损失的数额

C．偷窃和毁坏设备事件与民工工资无关，应循其他合法途径另行解决

D．全体民工有义务查出偷窃和毁坏设备者，查出前可暂扣部分工资作为保证

缺词填空。

     Everybody knows vegetables and fruit are g    1    for people．Many people eat some fruit each day．Mr and Mrs

Smith like e   2      fruit very much and every day Mrs Smith goes to buy some fruit in the shop near her home. She can

buy all k   3      of fruits there,such as apples,pears, oranges and bananas．In different time of the year the p     4    of

each kind of fruit is not the same,s    5     high,sometimes low. Mrs Smith usually t  6     to buy cheap fruit．And b     7   

are  Mr Smith's  favourite fruit．  Mrs Smith buys bananas for   him every week．  But she always chooses the cheap

ones."Eating fruit can help to keep f   8   ," said Mr Smith．"It's quite d     9     from snacks．Both of them can give us

energy．But snacks l    10     cakes, chocolates and sweets are not good for our health at all,"  

关于幻灯片的背景，说法不正确的是（）。

A、只有一种背景

B、可以是图片

C、不能更改

D、以上都错

高速1/12复式交分道岔，其道岔支柱一般位于距岔心（）处。

A、0.6m

B、0.8m

C、1.0m

D、1.5m