下列词语中划线的读音全都正确的一项是( )
A:咸亨(hēng) 羼水(chàn) 颓唐(tú)
B:舀出(yǎo) 拭擦(shì) 蘸酒(zhàn)
C:哄笑(hǒng) 蒲包(pú) 笔砚(yàn)
D:不屑(xiè) 阔绰(chuò) 门槛(kǎi)
群落演替的总趋势是( )
—You just have ___________. Wait until you finish this competition.
观察下面柱状图,图中数据的变化表明( )
-- You must be tired out after the climbing.
-- Oh, . I felt too tired to move.