闽学特点是什么?
参考答案:
(1)始终是动态、不断发展的
(2)包容性(3)注重节义,勤政爱民
(4)勤于著述,轻训诂重义理
(5)注重收徒讲学,热衷于教育
He is going to spend his holiday_______ his grandparents in the country. [ ]
A.to
B.on
C.with
D.for
厌氧消化分为哪两个阶段?并分别简述有哪些菌种微生物参与?