题目

— I hear Iron Man III is on recently. Let's set off for the cinema to appreciate it now. — ________ It's about 10 PM. I'm so tired that I must go to bed. A . Let's find some of the action. B . How do you find it? C . It's entirely up to you. D . You can't be serious. 答案：D“x＝4+5”与“x＝x-1”是某一算法中先后相邻的两个语句，那么下列说法正确的是①x＝4+5的意思是x＝4+5＝9，此式与算术中的式子是一样的；②x＝4+5是将数值9赋给x；③x＝4+5可以写成4+5＝x；④语句x＝x-1在执行时，“＝”右边x的值是9，执行后左边x的值是8．A.①③B.②④C.①④D.②③