水绵、蓝藻、黑藻全部[ ] A．是真核生物 B．含有叶绿体 C．是自养生物 D．

属于有机氯农药的有（）

A.DDT

B.六六粉

C.敌百虫

D.敌杀死

E.速灭威

①23°15′=______°；②90°-43°18′=______°．

阅读下面短文，掌握其大意，然后从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。

My mother only had one eye . During elementary school , there was a time  36  my poor mom came to my classroom . She was such a(n)  37  that I threw her a hateful look and ran out . soon word  38  that I had a one-eye mother . Everybody  39  me . So I told myself that I would grow up and become  40  , because I hated my mom and our desperate  41  . Then I studied really hard and later became a powerful businessman . I was living happily in Seoul when my mother  42  came to see me . I felt  43  the whole sky was falling apart on me . My little daughter ran away ,  44  of my mom’s eye . I asked my mother coldly , “ Who are you ? I don’t know you !” as if she were a(n)  45  . My mother quietly answered , “ Oh , I’m sorry . I may have got the wrong  46  ,” and disappeared . Thank God ! She didn’t recognize me . I was quite  47  .

One day , a letter  48  a school reunion came to my office . I decided to take part . After the reunion , I  49  to my old home , only to find my mother falling on the cold ground with a  50  in her hand , which read :

My son ,

I think my life has been enough now . I won’t visit Seoul anymore , but would it be too much if I wanted you to visit me once in a while ? I  51  you so much . And I was so glad when I heard you were coming for the reunion . But I decided not to go to the school . I’m  52  that I was an embarrassment for you . You see , when you were very small , you got a(n)  53  , and lost your eye . As a mother , I couldn’t  54  watching you grow up with only one eye , so I gave you mine . I was so proud of my son seeing a new world for me , in my place , with that eye . You mean the world to me .

My world shattered（崩裂）. Then I cried for the person who  55  for me—my mother .

36    A   when               B.     which             C.               whose                   D     as

37    A   achievement     B.     experience      C.         encouragement  Dembarrassment

38    A   showed off       B.     moved about   C.               got around             D     turned over

39    A   turned to          B.     laughed at       C.               contributed to        D     cared for

40    A   generous          B.     devoted          C.               successful              D     lucky

41    A   poverty            B.     illness            C.               desire                    D     hunger

42 A       unfortunately    B.     Unnecessariy   C.        unlikely         Dunexpectedly

43    A   even though      B.     as if               C.             in case                   D     if only

44    A   afraid               B.     proud             C.               sure                      D     full

45    A   owner              B.     beggar            C.               relative                  D     friend

46    A   number            B.     way               C.               direction                D     address

47    A   depressed         B.     worried          C.               relaxed                  D     puzzled

48    A   including          B.     considering     C.               concluding             D     regarding

49    A   returned           B.     responded       C.               replied                  D     recovered

50    A   book                B.     photo             C.               newspaper             D     letter

51    A   hate                 B.     miss               C.               like                       D     envy

52    A   glad                 B.     delighted        C.               sorry                     D     excited

53    A   incident            B.     experience      C.               affair                    D     accident

54    A   stand                B.     help               C.               appreciate              D     understand

55    A   learned             B.     cried              C.               fell                       D     lived

鼻咽癌的首选的治疗是（）。

A.手术

B.放疗

C.化疗

D.手术+放疗

E.手术+化疗

γ射线残暴的本质及能源机制问题，科学家已经解决了。