修一段路，甲独修需4天，乙独绣需要6天，甲与乙所需时间比是______，工作效率

With two children _____ high school, the farmer couple have to work from morning till night．

A．attended

B．being attended

C．attend

D．attending

根据图示，连词成句。

1.

    Is, sleeping, he

   ________________________________________________________________________

2.

    Talking, to, they, are, who

   ________________________________________________________________________

3.

    You, why, running, are

    ________________________________________________________________________

4.

   About, he, is ,what, dreaming

   ________________________________________________________________________

5.

    Doing, you, what, are

   ________________________________________________________________________

与体内DNA复制相关的酶是（）

A.反转录酶

B.DNA旋转酶

C.解旋酶

D.引发酶

E.DNA链接酶

高血压脑病指的是

A．血压过高引起的头痛

B．脑血管破裂出血

C．脑血栓形成

D．普遍而剧烈的脑血管痉挛引起脑水肿

E．肢体偏瘫，失语不可恢复

试就亚、非、拉美的报业现状，说明经济政治对发展中国家报业发展的重大影响？