—When will A Bite of China Ⅱ begin tonight? —It _________ for ten minutes.

在探究杠杆平衡条件的实验中，多次改变力和力臂的大小，主要是为了：

.Though the NMET is drawing near day by day, I still find I have so much to learn , to revise, to memorize and to analyze but without enough time. Oh, dear, everything seems to be____.

已知集合 $A=\left\{1,3,\sqrt{m}\right\}$ ，B={1，m}，A∪B=A，则m=（   ）

never, he, makes, noise, class, in (.)