单选题I have been hearing-impaired in my life since I was five years old.Putting on hearing aids in the morning has been just as（21）as brushing my teeth.However I never believed that it should limit my（22）i
单选题I have been hearing-impaired in my life since I was five years old.Putting on hearing aids in the morning has been just as（21）as brushing my teeth.However I never believed that it should limit my（22）i
单选题Alan,along with his parents,__________to Toronto.
单选题Can animals be made to work for us?Some scientists think that one day animals may be trained to do a number of simple jobs that are now done by human beings.They point out that at a circus,for example
单选题I have been hearing-impaired in my life since I was five years old.Putting on hearing aids in the morning has been just as（21）as brushing my teeth.However I never believed that it should limit my（22）i
单选题Can animals be made to work for us?Some scientists think that one day animals may be trained to do a number of simple jobs that are now done by human beings.They point out that at a circus,for example
单选题I have been hearing-impaired in my life since I was five years old.Putting on hearing aids in the morning has been just as（21）as brushing my teeth.However I never believed that it should limit my（22）i
单选题I have been hearing-impaired in my life since I was five years old.Putting on hearing aids in the morning has been just as（21）as brushing my teeth.However I never believed that it should limit my（22）i
问答题提示：Mr．Harris是位国际商用机器公司推销员（salesman），他去银行办理储蓄户头。办事员要他填几张表，询问他的姓名、地址、邮编、电话以及职业等，他都一一做了回答。第（51）题答案为
单选题圆的圆心在()点上．
单选题在等差数列{an}中，a1=1，公差d≠0，a2，a3，a6成等比数列，则d=（ ）
单选题某类灯泡使用时数在1000小时以上的概率为0．2，三个灯泡在使用1000小时以后最多只有一个坏的概率为
单选题下列文中语句所用引号的用法，与其他三项的一项是（ ）。
单选题函数y=log2（x+2）的图像向上平移1个单位后，所得图像对应的函数为（ ）
单选题设ƒ（x+1）=x（x+1），则ƒ（2）=（ ）
单选题参数方程表示的图形为()
单选题下列等式中，不成立的是
单选题17世纪，欧洲自然科学发展迅速，其中著名科学家波义耳的主要成就是（ ）
单选题
单选题1787年美国宪法将国家职权分为立法、司法、行政三部分，分别由国会、最高法院和总统执掌，其体现的原则是（ ）。