题目

在磁感强度为0.48T的匀强磁场中，有一个长为20cm、宽为10cm的矩形线圈。则穿过线圈平面的磁通量最大值为________Wb，最小值为________Wb。 答案：9.6×10-3；0阅读理解。1. According to the survey, people left alone on a desert island would most want their________.A. MP3 player     B. dog     C. spouse/ partner     D. celebrity2. Which of the following is true about George Clooney?A. He has been trained in wilderness survival.   B. He may not be able to help you survive.C. He does not think Roseane is beautiful.   D. He is the choice of most South African women.3. The survey results are analyzed in terms of the respondents' __________.A. sex, age and nationality      B. race, nationality and sexC. marriage, age and race       D. age, sex and marriage