A：I'm Mike.
B：Mom, this is Mike.
C：Nice to meet you.
I was ___________ tired to climb the mountain.
辨析题：
有人认为“纸币发行量过多，会导致通货膨胀，所以流通中的纸币越少越好。”
实验室有以下几种物质：金刚石、生铁、氧化铝、氢氧化钾、醋酸、酒精．请按要求写出有关物质的化学式．
属于单质的是____；属于碱的是____；属于氧化物的是____；属于酸的是____．
胚胎的发育场所是（ ）
The place _____the bridge is supposed to be built should be _____the cross river traffic is
the heaviest.
