每循环进入气缸的新鲜充量越多，说明换气过程进行得越完善。（）
参考答案：错
________ excited Geoff Marcy most was ________ there were planets in other solar system where life might exist.
A．It; if
B．That; whether
C．What; whether
D．What; that
800个24×24点阵汉字字形码占存储单元的字节数为 ( )
A．72KB
B．256KB
C．57KB
D．56．25KB
