各类邮件封面，不可用（）书写。
A、黑色或蓝色的钢笔
B、红色的圆珠笔
C、黑色或蓝色的毛笔
D、铅笔
参考答案：B, D
From her _____ voice on the phone, I know she was ______ with her new job.
A．satisfying; satisfying
B．satisfied; satisfied
C．satisfying; satisfied
D．satisfied; satisfying
制作松鼠鳜鱼一盘，用鳜鱼0.8 kg，每千克80.00元，调配料等合计为5.00元，销售毛利率为38％，问此菜的售价是多少？
