平衡计分卡的四个角度中，代表员工观点的是
A．内部业务流程角度
B．客户价值角度
C．学习创新与成长角度
D．财务角度
参考答案：C
根据污染物在水环境中输移、衰减特点以及它们的预测模式，将污染物分为( )。
A．热污染
B．酸和碱
C．好氧性污染物
D．厌氧性污染物
–Jim went swimming with his parents yesterday afternoon. –______.
A．So Mary did
B．So Mary does
C．So Mary was
D．So did Mary
