监狱常见的机械性窒息有哪些?
参考答案:
(1)缢死;
(2)勒死;
(3)扼死;
(4)溺死。
The poor ________ living in the mountain ________ top is covered with green trees.
A.are; which
B.are; of which
C.is; whose
D.are; whose
属于不成型填料的是()。
A.盘根
B.涨圈
C.mm
D.cm