【多选题】Could you _____________ the guest registration card for me, please?
【简答题】已知A={x||x-a|≥4},B={x|x 2 -4x+3<0},p是A中x满足的条件,q是B中x满足的条件. (1)求¬p中x满足的条件. (2)若¬p是q的必要条件,求实数a的取值范围.
【简答题】Clerk: Welcome to the Sheraton. May I help you? Guest: (1) I have a reservation. Clerk: (2) ? Guest: Phillip Parker. Clerk: Yes , Mr. Parker .(3) , is that correct? Guest: Yes. Could I have a room on ...
【单选题】关于油脂的化学性质以下说法错误的是 ( ) 。
【简答题】x 2 -4=0是x+2=0的______条件.
【简答题】“x>3”是“x 2 >4”的______条件.
【单选题】下面哪一部作品被称为“散文诗”电影:()
【简答题】求下列各式中的x (1) x 2 =36; (2) x 2 +1=1.01 ; (3) (4x-1) 2 =225; (4) 2(x 2 +1)=10.
【简答题】(1)计算: ; (2)解方程 : x(2x﹣5)=4x﹣10.