算术运算符的优先级按下面次序排列:++和--的级别最高,然后是 【7】 和/以及%,而+和-的级别最低。
参考答案:*
解析: 本题考查运算符的优先级,需要考生牢记。
Would you please keep silent? The weather report ________ and I want to listen to it.
A.is broadcast
B.has been broadcast
C.is being broadcast
D.had been broadcast
现代教师应该具备哪些角色?