考察下列词语的读音,根据语流音变的类型将其分别填入A、B、C、D四项中:
	①分[f?n]+配[p‘ei]→分配[f?mp‘ei]
	②喇[lA]+叭[pA]→喇叭[1Ab?]
	③豆[t?u]+腐[fu]→豆腐[t?uf]
	④慢[man]+慢儿[mar]→慢慢儿[maimar]
	⑤look[luk](看)+ed[d](动词过去时)→looked[lukt]
	⑥in[in](在……上)+bed[bed](床)→inbed[imbed]
	A.同化:_________
	B.异化:_________
	C.弱化:_________
	D.脱落:_________