更衣室与操作台面的灭菌方法是
A．热压灭菌B．紫外线灭菌C．干热灭菌D．滤过除菌E．流通蒸汽灭菌
参考答案：B
He was so helpful that we ____ him as direct.[ ]
A. chose
B. found
C. elected
D. put
工具栏的复制、剪切、粘贴按钮所对应的菜单命令放置于主菜单项______的下拉菜单中。
