在研究具体的金属腐蚀过程时，不需进行金属腐蚀电位的测定。

On May 30th, 2010, at _____World Table Tennis Championship, Ma Lin and Zhang Joke won the gold medal in men’s with ____score of 3:1.

A．a; a

B．/; the

C．a; /

D．the; a

根据短文内容和所给中文提示，写出空白处各单词的正确形式。每空限填一词。

We need love. We also need to love. The person I love most is my mother. My mother is      小题1:   （四十）years old. She is of medium build with long    小题2:  (棕色的)hair. She is taller but   小题3: (瘦) than me. She is a   小题4: (科学) teacher in a middle school. She likes  小题5: （唱歌） and dancing. She can  小题6: （烹制）delicious food. She always offers to help me whenever I’m in trouble.

She did a lot for me when I was a child. She didn’t buy anything expensive for herself.    小题7:  (相反，反而), she bought whatever I needed for my study, even though she didn’t have much money. She sent me from piano lessons to dancing lessons at the weekend and also helped me   小题8: (练习) speaking English every day because she is also good at English.

When I grow up, I will do what I can do to make my mother happy. I will find a good job after I graduate from college. I’ll save money and buy beautiful clothes for her. I’ll take her to wonderful   小题9: （地方）of interest around China. Above all, I will stay with her when I have free time so that she won’t feel   小题10: (孤独).

在脑中心疝的治疗中，哪一期为抢救治疗的关键时期（）

A.间脑期

B.中脑期

C.中脑一脑桥上部期

D.脑桥下部一延髓期

E.延髓期

根据波特五力模型，一个行业的( )时，该行业风险较小。

A．进入壁垒高
B．替代品威胁大
C．买卖方议价能力强
D．现有竞争者的竞争能力强

ISO是（）名称的缩写。