冠心病为何引起心力衰竭
A．长期高脂饮食
B．心肌收缩无力
C．长期高血糖
D．长期吸烟
E．高血压
参考答案：B
A tsunami (海啸) happened in some southern Asian countries _____ December, 2004.[ ]
A. at
B. on
C. in
D. by
棉织物的定形整理有哪些？
