关于雄激素的生理作用，下列描述错误的是A．促进阴毛和腋毛的生长 B．在青春期的体格发

在集中趋势测度中，当变量值中有一项为零时，则不能计算（）。

A.算术平均数

B.众数

C.几何平均数

D.中位数

以下属于上市公司运作行为的有( )。

A．分红派息、配股、转股

B．回购、赎回

C．吸收合并、破产

D．生产、销售、盈利或亏损

.

二、完形填空（共20小题，每小题1分，满分20分）

I had an interesting experience playing ping-pong last year. I was playing against a 16 opponent(对手). The score was 20 to 17 in her  17 . I won the next three points which made the score 20 to 20. I  18 my paddle on the table and thanked my opponent and began to walk away. She called me  19  and said we had to continue until one of us  20 .

“Look,”I said, “if we 21 , one of two events will take place, either you or I will win.If you win, I will begin to 22  my skill. If I win, you will be unhappy. Isn’t it better to know that we both played 23  , that we enjoyed the competition, and that we played an even(相等) score?” This was a 24  ending for my opponent and for the persons watching this contest. It made  25  to me to leave with a tie(不分胜负) game, an impasse(僵局): no winner, no 26  .

So, my friends, here is the problem  27   me. Our present technology makes it possible for nations to  28  other nations for retaliatory(报复) strikes. In such a nuclear time, there  29  be no winners, only losers. Under these conditions, the only choice to  30  global destruction is glogal impasse. This would be a  31  “tie game” where no nation wins and no nation loses. An impasse reached through compromise(妥协). This is because compromise becomes the only means of  32 . We cannot destroy this beautiful planet by holding on to  33  understanding of victory. The 34  victory is in achieving a desirable impasse. No one wins, 35  no one loses either.

16.A.tiring                                 B.poor                         C.fine                          D.brave

17.A.favor                                  B.side                          C.lead                          D.place

18.A.threw                                 B.placed                       C.stuck                         D.dropped

19.A.up                                      B.over                          C.on                                   D.back

20.A.lost                                    B.won                          C.gave up                    D.tired out

21.A.perform                              B.stop                          C.continue                    D.leave

22.A.doubt                                 B.hate                          C.practise                     D.desert

23.A.hard                                          B.fair                           C.poorly                       D.well

24.A.close                                  B.surprising                  C.satisfying                  D.reasonable

25.A.progress                          B.room                        C.sense                         D.time

26.A.loser                                  B.fighter                      C.success                      D.player

27.A.encouraging                        B.frightening                C.shocking                   D.troubling

28.A.destroy                               B.attack                        C.seize                         D.rule

29.A.may                                          B.should                       C.can                           D.must

30.A.escape                                B.flee                           C.accept                       D.avoid

31.A.different                             B.small                        C.huge                         D.familiar

32.A.surviving                            B.living                        C.staying                      D.pleasing

33.A.an old                                B.an unusual                 C.the same                   D.a complete

34.A.great                                 B.only                         C.same                         D.equal

35.A.where                                 B.but                           C.as                             D.since

下列属于商业银行增加核心资本方式的是( )。

A．发行可转换债券
B．降低风险加权总资产
C．提高留存利润
D．发行长期次级债券

配制100ml 2%头孢噻吩钠溶液，需加入多少克氯化钠使其成等渗(E=0.24)( )

A．0.42g
B．0.84g
C．1.63g
D．0.79g
E．0.25g