— What's the matter with the man hanging

I first had physics lessons when I was in Grade Eight some years ago. In class, I   1   that there wasn’t a Nobel (诺贝尔) Prize winner from China. That made me sad, and I decided to change (改变) it.   2   after that, I got up early in the morning. I turned on the light and took out a physics book. Then I started   3   quietly. I worked so hard because I had a great   4   — one day, I would be the first   5   person to win the Nobel Prize in physics. Later on, I found physics at school too easy for me. I wanted to learn   6  , so I made a reading plan and started to find answers to more difficult problems.

Now I am a top student in physics. I won the first prize in the national physics competition  last month. And I am happy to be closer to my dream after a few   7   hard work. Of course,   8   I have some problems. My classmates always   9   me when they are talking about fashion (时尚) or pop stars, because I know   10   about them. “Well, that doesn’t matter too much,” I tell myself. “They don’t know much about physics , but I won’t laugh at them.”

小题1:A. joined           B. heard                 C. studied

小题2:A. So              B. But                    C. And

小题3:A. writing         B. reading                C. thinking

小题4:A. dream          B. idea                 C. plan

小题5:A. Chinese        B. Canada                C. American

小题6:A. much           B. more                  C. most

小题7:A. weeks’         B. months’              C. years’

小题8:A. usually         B. always                C. sometimes

小题9:A. depend on      B. look at                C. laugh at

小题10:A. anything        B. nothing              C. everything

溶血性链球菌感染时，脓液的特点是（）。

A.脓液稠厚，黄绿色

B.脓液稀薄、血性

C.脓稀薄厚，有粪臭味

D.脓液淡绿色，有特殊甜腥臭味

E.脓液稀薄，泡沫样

下列划线词语解释有误的一项是[ ]

A．惟余莽莽（无边无际）      俱往矣（都）                  略输文采（差、失）

B．断章取义（截取）             亵渎（轻慢，不敬）        唾手可得（伸手）

C．阴晦（阴沉昏暗）             无端（无缘无故）           拮据（手头紧，经济状况不好）

D．孜孜不倦（勤勉）             不言而喻（明白）           味同嚼蜡（形容写文章或说话枯燥无味）

有可逆反应：Fe（s）＋CO2（g）FeO（s）＋CO（g）。已知938K时平衡常数K＝1．47，1173K时平衡常数K＝2．15。

（1）该反应的平衡常数表达式____________________，是____________（填“吸热”或“放热”）反应。

（2）若该反应在体积恒定的密闭容器中进行，在一定条件下达到平衡状态，如果改变下列条件，反应混合气体的平均相对分子质量如何变化（填“增大”、“减小”或“不变”）。

①升高温度_________________；②再通入CO__________________。

（3）该反应的逆反应速率随时间变化的关系如图：

①从图中可以看出，反应t2时达到平衡，在

t1时改变某种条件，该条件可能是_______。

A．升高温度

B．增大CO₂浓度

C．使用催化剂

②如果在t3时从混合物中分离出部分CO，t4～t5时间段反应处于新的平衡状态，请在图上

画出t3～t5的υ（逆）变化曲线。

子宫动脉的描述不正确的是：

A．子宫动脉发自髂内动脉前干
B．其分支分别供应子宫、输尿管、卵巢及 * * 上部
C．子宫动脉频谱正常波形显示为收缩期的峰尖锐舒张期速度减低
D．频谱随月经周期无明显变化
E．子宫两侧的血供相同