命题逻辑 how many rows are needed for the truth table of the compound statement(p∨¬q)↔[（¬r∧ s) → t] where p q r s and t are primitive statements

命题逻辑 how many rows are needed for the truth table of the compound statement(p∨¬q)↔[（¬r∧ s) → t] where p q r s and t are primitive statements 这句话什么语法结构It works,but for production scenarios that solution would reduce every DBA to tears.At least it will if the result is a SELECT that fetches all rows just so you can count how many rows there are. GWD管卫东GMAT 第7套题 数学第21题 求讲解 谢谢 正确答案是E 我觉得C……Q21:Theater M has 25 rows with 27 seats in each row. How many of the seats were occupied during a certain show?(1) During the show, there was an average (ar 英译中,并说明语法的原因There are 3 times as many rows which contain 45 as those which contian 40.How many rows contain 45 为什么是40座位一排的3倍，而不是45个座位一排的3倍？ ____ are the apples?a.How many b.How much c.how many money how many classes do you have a How many sides does a house have? how many sides does a house has? How many months make a year? how many sides does a houes have How many sides does a circle have? how many sides does a snowflake have How many seasons are there in a how many legs does a spider have how many legs does a spider have how many sides does a decagon How many wheels does a jeep have? How many (foot) does a monkey have?