A比B多2倍，B比C多它的二分之一，则A∶B∶C=[ ]
A．3∶1∶2
B．2∶1∶3
C．3∶1∶6
D．9∶3∶2
答案：D
-It will be my turn .I feel a little nervous.
- .You can make it.
A．Congratulations!
B．Take it easy
C．Look out
D．Have a good time
转角杆塔用符号（）表示。
A.Z
B.N
C.J
D.D
