关系式x≤-5或x≥5所对应的布尔表达式是 【6】 。
参考答案：x＜=-5 Or x＞=5
解析： 表示逻辑或的关系运算符号为：Or。
__________after the race that he didn’t know what to say before so many reporters.
[ ]
A. So excited the champion was
B. So excited was the champion
C. So excited the champion felt
D. So excited felt the champion
听到弃船命令或信号，船员和旅客应设法各自逃生。（）
