对下列哪些情形应当追究刑事责任( ) A．15周岁的甲在聚众斗殴中致人死亡 B．1

体细胞突变可能的后果不包括

A．致癌

B．致畸

C．衰老

D．遗传性疾病

E．动脉粥样硬化

There was a little boy   26  his grandparents on their farm.He was given a slingshot（弹弓）to play with,out in the woods.He   27  in the woods,but he could never hit the target.Getting a little  28 ,he headed back to dinner.Then,he saw Grandma’s pet duck,so he let fly,hit the duck square in the head,and   29  it.He was shocked and upset.In   30 ,he hid the dead duck in the woodpile,  31  to see his sister watching.Sally had seen it all,  32  she said nothing.

  33 lunch that day grandma said,“Sally,let’s wash the dishes.”

But Sally said,“Grandma,Johnny told me he wanted to   34  in the kitchen today,didn’t you Johnny?”And then she   35  to him,“Remember,the duck?”So Johnny did the dishes.

Later Grandpa asked if   36  wanted to go fishing,and Grandma said,“I’m sorry but I need Sally to help make supper.”

But Sally   37  and said,“Well,that’s   38  because Johnny told me he wanted to help.”

  39 the duck,Johnny had to stay and Sally went fishing.

After several days of Johnny doing both his   40  and Sally’s,he finally couldn’t   41 

it any longer.He came to Grandma and told her that he killed the duck.She   42  down,gave him a hug（拥抱）,and said,“Sweetheart,I know.You see,I was standing at the window and I   43  the whole thing.But because I love you,I   44  you.But I was just   45  how long would you let Sally make a slave of you.”

26.A.helping                 B.visiting                            C.tending                            D.seeking

27.A.practised               B.played                       C.worked                            D.hunted

28.A.anxious                B.tired                         C.pleased                      D.discouraged

29.A.caught                  B.injured                      C.killed                        D.seized

30.A.surprise                B.disappointment          C.anger                        D.horror

31.A.only                     B.so as                         C.in order                     D.expecting

32.A.so                        B.and                           C.instead                      D.but

33.A.At                        B.After                        C.Before                      D.Cooking

34.A.work                    B.stay                          C.help                          D.get

35.A.called                  B.whispered                  C.nodded                      D.signed

36.A.the children          B.Sally                         C.Johnny                      D.Grandma

37.A.sighed                  B.agreed                       C.objected                    D.smiled

38.A.easy                            B.all right                     C.fine                          D.impossible

39.A.Searching             B.Hiding                      C.Remembering            D.Regretting

40.A.homework            B.housework                 C.farm work                 D.cooking

41.A.stand                    B.change                      C.like                           D.cover

42.A.sat                       B.went                         C.lay                            D.knelt

43.A.know                   B.heard                        C.saw                           D.understand

44.A.missed                  B.forgave                            C.congratulated             D.punished

45.A.wondering            B.saying                       C.imaging                    D.considering

遥测站按调度中心的命令而发送采集信息的系统体制称之为（）体制。

升级分压法灌浆的压力分级不宜过多，一般分为（）

A、2级

B、3级

C、4级

D、5级

下列关于设计基准期和设计使用年限的概念何项是错误的？（）

A.可靠度指结构在规定的时间内，在规定的条件下完成预定功能的概率；规定的时间指设计基准期

B.设计基准期是为确定可变作用及与时间有关的材料性能等取值而选用的时间参数，设计基准期为50年

C.设计使用年限是设计规定的结构或构件不需要进行大修即可按期预定的目的使用的时期

D.设计使用年限按1、2、3、4类分别采用5年、25年、50年、100年