“夫妻和谐素”指的是()
A.VitE
B.Ca
C.Zn
D.Fe
E.I
参考答案:C
判断题。(对的打“√”,错的打“×”)
(1)A2与A·A表示的意义相同。[ ]
(2)字母式x×8省略乘号表示为x8。[ ]
(3)等式不一定是方程,而方程肯定是等式。[ ]
(4)x=2是方程1.5x-2.6 =0.4的解。 [ ]
(5)甲数比乙数小6.如果甲数是a,则乙数是a-6。[ ]
(6)给等式两边同时加上(或减去)同一个数,等式仍成立。 [ ]
(7)如果3x+1=9,那么x+1=9÷3。 [ ]
________ impressed the audience most was ________ the magician Liu Qian played in this year's
Spring Gala.[ ]
A. What; what
B. What; that
C. That; what
D. That; that