严肃与谨慎相结合政策的总精神就是不枉不纵。( )
参考答案：对
小题1:Jack got good g ▲ in the Math exam last week.
小题2: It' really amazing that the elephant can go t ▲ such a small circle.
小题3:The old man moved ▲ （向前）with slow steps.
小题4:Mum, I'd like one more ▲ （块）of cake.
小题5: ▲ (数百万) of visitors come to the seaside town every year.
土壤有机质在微生物的作用下生成腐殖质的过程叫（）
A.土壤有机质的矿质化
B.土壤有机质的腐殖化
C.土壤矿物风化
D.土壤矿物氧化
