方程2(3x-2)=5(x-2)的解是 [ ]
A.x=6
B.x=0
C.x=-6
D.x=-4
答案:C
On the international market, the price of petroleum has been falling down, which is now _____ it used to be.
A.as one third as
B.one third as much as
C.one third more than
D.as one third much as
PPR管的连接方式有()、()、()连接。