生产上采用的大蚕饲养型有（）；（）；（）。
参考答案：普通育；条桑育；屋外育
As is often the _______, the housewife gives the house a thorough cleaning ________. [ ]
A. matter; every two days
B. situation; each second day
C. same; each two days
D. case; every second day
唇性科植物，（）全草药用，性微苦、味苦辛，归心肝经，有活血安神的作用，通常用于妇科方面的治疗。
ousewife gives the house a thorough cleaning ________. [ ]