安装孔板时,如何确定正负压室,小孔起什么作用?小孔向上还是向下?
参考答案:倒角一侧为负压室,不倒角一侧为正压室。(没有倒角看标牌)小孔为液流孔,小孔向下。
Tom was to blame for the incident. But _______his positive attitude , we forgave him because “Every man has his faults.”.
A.in spite of
B.in search of
C.in exchange for
D.in view of
恶意代码的基本形式还有后门、逻辑炸弹、特洛伊木马、蠕虫、细菌。蠕虫是通过()进行传播的。