阑尾的动脉来自
A．右结肠动脉B．同结肠动脉C．中结肠动脉D．左结肠动脉E．乙状结肠动脉
参考答案：B
—Did Mr. Brown make a suggestion in the meeting?
—He _________ a good plan to make the farmers __________.
A．put forward; benefit from
B．looked forward; benefit from
C．kept up with; benefit
D．put up with; benefit
何谓非金属夹杂物？
