关于股东的主体资格证明，下列说法错误的是（）。 A.股东为事业法人的，提交事业法人登

不能与蛋白质发生化学反应的物质是（　　）

A．乙酸铅

B．浓硝酸

C．硫酸钠

D．甲醛

词性变换。

1. We play a game _____(call) trick or treat.

2. ---What do you buy the pumpkins for?  

   ---  ________(make) lanterns.

3. I don't know what _____(wear) for the dinner party.

4. The library is on the ______(two) floor.

5.We are ________(excite) to see you.

6. I clean my room _______(two) a day.

7. You must brush your ______(tooth) every day.

8.What about _______(cut) out eyes and noses.

9. There is lots of _______(turkey) on the table.

10. Would you please _______(not knock) on the door?

11. They celebrate the festival by       (give) presents and cards.

12. Let him ______(clean) the blackboard today.

13. I will go to the park if it______________(not rain) tomorrow.

14. Thanks a lot for ______(give) us so many candies.

15. What are they looking forward to _________(do)?

树枝状角膜炎是由（）感染所致。

某溶液的pH值约为6，用酸度计测定其精密pH值时。应选择的两个标准缓冲液的 pH值是( )。

A．1.68，4.00

B．5.00，6.86

C．4.00，6.86

D．6.86，9.18

E．1.68，6.86

Euthanasia has been a topic of controversy in Europe since at least 1936. On an average of six times a day, a doctor in Holland practices "active" euthanasia: (1) administering a lethal drug to a (2) ill patient who has asked to be relieved (3) suffering. Twenty times a day, life prolonging treatment is withheld or withdrawn (4) there is no hope that it can (5) an ultimate cure. "Active" euthanasia remains a crime on the Dutch statute books, punishable (6) 12 years in prison. But a series of court cases over the past 15 years has made it clear that a competent physician who (7) it out will not be prosecuted.

Euthanasia, often called "mercy killing", is a crime everywhere in Western Europe. (8) more and more doctors and nurses in Britain, Germany, Holland and elsewhere readily (9) to practicing it, most often in the "passive" form of withholding or withdrawing (10) The long simmering euthanasia issue has lately (11) into a sometimes fierce public debate, (12) both sides claiming the mantle of ultimate righteousness. Those (13) to the practice see themselves (14) sacred principles of respect for life, (15) those in favor raise the banner of humane treatment. After years (16) the defensive, the advocates now seem to be (17) ground. Recent polls in Britain show that 72 percent of British (18) favor euthanasia in some circumstances. An astonishing 76 percent of (19) to a poll taken late last year in France said they would like the law changed to (20) mercy killings. Obviously, pressure groups favoring euthanasia and "assisted suicide" have grown steadily in Europe over the years.

9（）

A.admit

B.allege

C.approve

D.adopt