什么是铝箔胎沥青油毡

可摘局部义齿间接固位体放置的位置与支点线的关系应该是间接固位体与义齿游离端位于支点线的两侧，远离支点线。

Mr. Ellis is very old. He has seen many changes in his home town.

　　 He knows that things are different now. But he never forgets the old days. He likes to talk about them. He often talks about his favourite（最喜欢的）birds, the robins （一种小小鸟——鸫）.  "When I was a boy, these houses were not here. There were wide fields and tall trees. Every spring robins would come. Thousands of them would fly up to the north from the south. They spent the winter in the south. Some would build their nests（巢）in the trees near our houses. Then people started to cut down trees, and they built more houses. The robins stopped coming. They couldn't build their nests near our houses because there were no trees."

　　"Now there are too many houses and too many roads. There are no places for the robins. They do come any more（不再）."

小题1:Mr. Ellis often talks about________.

A．his old house

B．the old days

C．his life now

D．his family小题2:The birds, the robins, spent the winter in________.

A．the south

B．the west

C．the north

D．the east小题3: ________ built the nests in the trees.

A．Mr. Ellis

B．Some people

C．The robins

D．Some dogs小题4: Then people________ trees because they wanted to build more houses.

A．cut down

B．planted

C．bought

D．watered小题5:From the passage（短文）we can know that________.

A．Mr. Ellis likes his new life now

B．there were many houses there in the old days

C．the robins can make their nests without trees

D．Mr. Ellis is not happy with the changes there

目前恶性胸膜间皮瘤唯一可能获得根治的手段是（）

A.手术

B.放疗

C.化疗

D.分子靶向治疗

E.姑息治疗

A．Archie服务器

B．WAIS服务器

C．DNS服务器

D．FTP服务器

凸极式同步电动机的转子由（）、磁轭和磁极组成。