（）有其不可修正的特性。
A.随机误差
B.标准偏差
C.粗大误差
D.极限值
参考答案：A
The result is not the same ____they had expected, _____ was rather disappointing.[ ]
A. as; which
B. as; that
C. that; as
D. which; as
开胸后出现病理呼吸是（）
A.摆动呼吸
B.成串呼吸
C.反常呼吸
D.失调呼吸
E.长吸呼吸
