第29题: [单项选择]These jewels have been ______ from generation to generation in our family for hundreds of years. A. passed by B. passed down C. passed over D. passed for 参考答案:B 答案解析:题意是:这些珠宝在我们家族中代代________了数百年。[B]passed down“传递”,符合题意。[A]passed by “经过,掠过”,[C]passed over“忽略,省略”,[D]p
第30题: [多项选择]MRI设备伪影主要有 A. 化学位移伪影 B. 卷褶伪影 C. 截断伪影 D. 部分容积效应 E. 层间干忧 参考答案:A,B,C,D,E