遥测是指远距离（）。
参考答案：数据测量
已知菱形ABCD的面积是12cm2，对角线AC=4cm，则菱形的边长是______cm．
It’s beyond our comprehension that Jim, who tops the class in English, ________ have difficulty translating such a simple sentence.
A．shall
B．should
C．might
D．must
