炉膛“有火”记忆的条件为（），或（）。

On a cold winter afternoon, Susan was walking home from a supermarket. She was feeling a little   46  , as she was carrying her shopping bags. They were   47  heavy that she decided to have a rest in the park. Then she noticed a poor man   48  in front of her. The man was holding a paper bag. He walked to a rubbish bin(箱) and started looking    49  it.

Susan suddenly felt sad. She knew this man would take all that he could get. So she went up to him and gave him some fruit. The man looked up in  50  and took what she gave him.

A big smile appeared on his face and she felt very happy. Then he said, “Wow! First someone gave me this sandwich, then the orange juice, and now some delicious   51  . This is my daughter’s lucky day. Thank you, girl.” Then he went   52  , singing a song.

Just then, Susan understood   53  the saying “Giving is getting” really meant. Everyone in the world needs help; everyone can offer help and everyone will   54  by showing kindness.

Giving sometimes doesn’t cost much,   55  it means a lot to the people who you help. The man’s happiness at that moment comes into Susan’s mind every time she has the chance to help others.

小题1:A. sad     B. tired    C. frightened

小题2:A. so B. too  C. such

小题3: A. walked     B. was walking  C. to walk

小题4:A. at B. for  C. through

小题5:A. surprise    B. surprised    C. surprising

小题6: A. food   B. drink    C. fruit

小题7:A. out     B. away C. in

小题8: A. what   B. which    C. why

小题9: A. help   B. be helping   C. be helped

小题10:A. or B. but  C. and

按职业道德基本规范的相关规定，以下对服务群众的具体要求，描述不正确的是（）。

A.要树立服务群众的观念

B.自觉履行职业责任，遵守职业规则

C.热情周到，满足群众需要

D.忠于职守，奉献社会

孙中山在回忆19世纪末广州起义时说：“当初之失败也，举国舆论莫不目予辈为乱臣贼子、大逆不道，咒诅谩骂之声，不绝于耳。”这种现象得以改变应该是在 （   ）

A．鸦片战争后

B．太平天国运动后

C．甲午中日战争后

D．八国联军侵华战争后

RIA试验中抗原抗体复合物的放射性强度与待测抗原呈（）

A.正比关系

B.反比关系

C.函数关系

D.曲线关系

E.正弦关系

稿酬所得，适用比例税率（ ），并按应纳税额减征30%。

A．30%

B．20%

C．15%

D．50%