影响细粉分离器堵塞有哪些原因?
参考答案:
(1)下粉管锁气器轧煞在关闭位置;
(2)木屑分离器被垃圾杂物或湿粉堵塞;
(3)细粉分离器下粉挡板在关闭位置。
—Would you love to hang out with us, Helen?
—Sorry. I would rather _____ at home than _____ out with you. [ ]
A. to stay; hang
B. stay; hang
C. stay; hanging
D. to stay; to hang
类白血病反应的特点是()
A.外周血白细胞>50×109/L
B.外周血出现幼稚细胞,NAP活性增高
C.骨髓中幼稚粒细胞增高
D.脾脏显著肿大
E.ph染色体阳性