（）不属于妊娠的三个重要环节。A、排卵 B、排精 C、受精 D、着床

下列各句中加粗的成语使用不恰当的一句是[ ]

A．潭邵高速公路贯穿湘中腹地，厚重的湖湘文化积淀和琳琅满目的风物交织的绚丽画卷，都因为有了交通的改变，让湘人耳目一新。

B．在这块创造出无数神奇的土地上，在三湘四水纵横捭阖的泸昆高速公路，使昔日的辉煌和现代文明交相辉映，使无数梦牵魂绕的美好愿景变成了现实。

C．五十一年前，毛 * * 曾写下“才饮长沙水，又食武昌鱼；万里长江横渡，极目楚天舒”的瑰丽词句。如今，帆樯竞发，宏图大展，长株潭和武汉试验区的设立，将使两大城市群相得益彰，建立起真正的鱼水关系。

D．生活在这个快节奏时代的我们，已经很少静得下心来好好读书了，即便读也是东鳞西爪浮光掠影的文字信息的汇集，难得有对着美食大快朵颐式的阅读快感。

There was a big sea bird that was very beautiful. One day, the sea bird (1) to a country and stayed outside of a palace. The Emperor asked his men to bring it to the palace. Then he said," As a (2) for the sea bird, we’ll set up the band and get the best food and wine ready for it. "(3) they played the best music for the sea bird, but it looked (4) . The Emperor introduced the most delicious food and best wine and asked the bird to have them. But the sea bird (5) After three days without eating or drinking, the sea bird (6)  .The Emperor said (7) , "Why didn’t you eat I gave you all of the (8) !"The story tells us that what some people believe to be the best music and the best food aren’t so for (9) . Feed a bird according to a bird’s wants, not a person’s. The (10) "Do to others as you would have others do to you. " is never really suitable or right.

第（1）空应选择（）

A．ran

B．walked

C．flew

D．moved

常见金属D的制取与转化关系如下（有些反应物和生成物已略去）：

（友情提醒：本题中的字母是物质代号，不是元素符号）

（1）写出下列物质的化学式：A是______；E是______；C是______．

（2）写出上图中①③两反应的化学方程式：①______；③______；

（3）反应③的基本反应类型是：______．

盛有NO和NO₂的混合气体的量筒倒立在盛有水的水槽中，过一段时间后，量筒内的气体体积减小为原来的一半。则原混合气体中NO和NO₂的体积比是 [ ]

A.3:1 

B.1:3

C.2:1

D.1:2

对混悬液的说法正确的是

A．混悬剂中可加入一些高分子物质抑制结晶生长

B．沉降体积比小说明混悬剂稳定

C．干混悬剂有利于解决混悬剂在保存过程中的稳定性问题

D．混悬剂是热力学不稳定体系

E．重新分散试验中使混悬剂重新分散所需次数越多，混悬剂越稳定