下列关于可持续增长率的说法中，不正确的是( )。 A．可持续增长率=股东权益增长率

中央性颌骨骨髓炎急性期的X线特点是（）。

A.斑点状破坏

B.死骨形成

C.骨膜反应

D.皮质外新骨质增生

E.骨质无明显变化

III．完形填空 (共20小题；每小题1分，满分20分)

阅读下面短文，从36—55各题所给的四个选项(A、B、C和D)中，选出最佳选项，并在答题卡上将该项涂黑。

"I've been writing a book, John. Do you think anyone would be interested in   36  it?" said the old lady.

John took over the   37  from her shaking hand and   38   her in a chair. He remembered her rich   39  in the early days of the Old West. He looked through the papers. "It's good, Grandma." He said gently. Then realizing that she couldn't hear him, he shouted   40  her ears. “I think it's very good. I'll   41   it to a publisher."

Ten days later, he reported that the   42  had had time to read only a few pages. But he was so   43   that he had sent $100 for an option（版权）.   44   money would be given as an advance（先付）.

One morning, three months after her 100th birthday, Grandma didn't get up. The doctor told her that she couldn't   45  more than a few days.  She was   46   to go, but she first wanted her book to be in print. John promised that she   47  get the book very soon.

Grandma   48  on until the day the book came into her hands, with the title and her name on the cover. Though she couldn't see it, she could   49  it. She   50   felt her name with her fingers, tears in her eyes. Two hours later, she died   51 , still holding her book.

Her granddaughter took up the book and opened it. "Why, it's just blank（空白的）pages!" she cried in   52  John's face turned red. Then the girl understood. There never was a book. Grandma couldn't   53   the little bell when the typewriter came to the end of the line. She would keep on working, not knowing the whole sentences and sometimes the paragraphs were   54 . John did not tell her, for he couldn't take away her only   55 . It was John himself who had written the letters and sold his car to pay the advance.

36．A．buying          B．publishing       C．reading          D．lending

37．A．papers          B．newspaper      C．book          D．magazine

38．A．sat              B．put              C．placed           D．seated

39．A．lives            B．experiences      C．thoughts        D．family

40．A．onto            B．inside          C．into           D．on

41．A．throw             B．put              C．send             D．lift

42．A．publisher        B．officer         C．doctor         D．teacher

43．A．interested        B．angry          C．frustrated       D．gentle

44．A．Little            B．Much          C．Enough          D．More

45．A．die              B．stay             C．last             D．remain

46．A．worried          B．anxious           C．ready           D．eager

47．A．must            B．would          C．could          D．might

48．A．did              B．took            C．made             D．lived

49．A．read            B．smell           C．Hear             D．touch

50．A．proudly          B．quickly           C．carefully         D．slowly

51．A．angrily          B．peacefully      C．willing         D．quickly

52．A．anger                 B．joy              C．surprise          D．tears

53．A．see              B．smell           C．Hear              D．taste

54．A．missing          B．finished          C．completed         D．ended

55．A．hope            B．book          C．life             D．paper

胎儿心音常需与哪些杂音相鉴别？

不同的凸透镜其焦距一般是不相同的，请探究凸透镜的焦距。

（1）焦距的大小与凸透镜的哪些因素有关？请提出你的一个猜想。____________________________

（2）小红同学用凸凹程度相同、半径不同的两个凸透镜会聚太阳光，多次测量后，测得会聚点到光心的距离都是10cm，由此你得出的结论是：_____________________________

（3）小明同学用半径相同、凸凹程度不同的两个凸透镜会聚太阳光，多次测量后，测得较凸的那个凸透镜会聚点到光心的距离是5cm，另一个是8cm，由此你得出的结论是：__________________________。

（4）这两位同学在本实验中都用到了物理学中常用的一种方法，这种方法是：___________________。

直流电动机转速不正常。可能引起该故障的原因有（）。

A.并励绕组接线不良或断开

B.串励电动机轻载或空载运行

C.电刷位置不对

D.主磁极与电枢之间的空气隙不相等

E.个别电枢绕组短路