【多选题】如下各换热器中,哪几种被认为具有清洗方便的优点()
【简答题】Balzac was a great France writer, but he was very 小题1:. ________ Poor before he became famous. He lived in a dirty wet 小题2:._________ room and worried about food. His friends were so poor as he. 小题3:....
【单选题】中国红色文化产生于 ( ) 世纪初新文化运动时期,以后的红色革命浪潮席卷了整个中华大地,中国由此开始了红色文化的大量沉积。
【判断题】在8位补码表示中,10000000表示的真值为-0。
【单选题】下列对螺旋板式换热器优点的描述错误的是()。
D.
操作温度和压力不易太高,压力不超过2MPa,温度不超过300~400℃
【单选题】在一个字长为8位的二进制机器中,采用补码表示数值,最高位为符号位,则十进制数-1的补码表示是( )。
【单选题】Hearing the news about the crash of Air France Flight 447, he became very concerned _______ his daughter on board.