下列叙述中正确的是 A．p能级的原子轨道呈哑铃形，随着能层的增加，p能级原子轨道

Family Pictures
l . We visited Grandma last week.  She went to her bedroom. She brought down old books of pictures. We looked at the old pictures. 2. We sat at the kitchen table. A mother, a grandmother. and a daughter looked at photos  of mothers, grandmothers and daughters. 3. We turned the yellow pages of the books. The pictures were old. They had men, women, and children I don't remember.	4. We listened to Grandma talk. " There's a little Bonita." She said. " She had long ,curly.  brown hair and big brown eyes." Grandma touched the page. 5. We listened to stories about aunts, uncles, cousins, mothers, fathers, sons and daughters. I don't remember them. But from the stories I know them.

小题1:Which word is repeated at the beginning of each stanza( 诗节 ) ?

A．Books.

B．Grandma.

C．Remember.

D．We.小题2:In which stanza does Grandma describe Bonita?

A．Stanza 2.

B．Stanza 3.

C．Stanza 4.

D．Stanza 5小题3:What is the writer's message in this poem?

A．Visiting grandma is boring.

B．Stories help you know people.

C．Photos are useless.

D．Grandmothers don't like to tell stories.

某校共有学生2000名，各年级男、女学生人数如右表示，已知在全校学生中随机抽取1名，抽到高二级女生的概率是0.19，现用分层抽样的方法（按年级分层）在全校学生中抽取100人，则应在高三级中抽取的学生人数为______． 高一级 高二级 高三级 女生 375 x y 男生 385 360 z

征收房产税时，自用的地下建筑属于工业用途房产，以房屋原价的70%～80%作为应税房产原值。应纳房产税的税额=应税房产原值×［1×（10%-30%）］×1.2%。（）

调节幅度为正视被测眼调动最大调节的条件下的（）。

A、调节储备

B、调节近点

C、调节近点

D、调节力

游离渗碳体的金相形态和形成原因是什么？