大麻的急性期精神症状可分为四期,即()、发展期、()和().
参考答案:陶醉兴奋期;深度幻觉期;沉睡期
Only when he is seriously ill ______ in hospital.
A.he does stay
B.does he stay
C.he stays
D.stays he
什么是火灾的三要素?