已知：x=2a-3，y=4a+3，用x表示y，得y=______．
由第一个方程乘2减第二个方程得：
2x-y=-6-3，
-y=-2x-9，
y=2x+9．
The art show was being a failure; it was a great success.
A．far from
B．along with
C．next to
D．regardless of
试述千金鲤鱼汤的药物组成及临床运用。
