表格法进行偏差分析具有的特点有（）。
A．信息量大
B．灵活、适用性强
C．形象、直观
D．能够准确表达出费用的绝对偏差
E．信息量少
参考答案：A, B
Mr. Fan _____ this watch in 2005, he _____ it for 6 years. [ ]
A. bought, has had
B. bought, has
C. has bought, has had
D. has bought, had
潮湿的土壤，导热率较（），故热量传递较（），因而其表面温度变化（）。
