腱鞘囊肿常发生部位为（）
A.腕背部
B.腕掌部
C.足背部
D.踝前部
E.前臂
参考答案：A
With so many problems __________, the new mayor will have a hard time in his poor town.
A．to settle
B．settled
C．being settled
D．to be settled
简述高压玻璃钢管道的生产工艺流程。
