题目

.After Wenchuan earthquake, the unaffected provinces ______ skilled builders to the quake-hit areas quickly.    A. transformed               B. stressed              C. appointed           D. evaluated 答案：C将饱和氯化铁溶液滴入稀氢氧化钠溶液中加热，可得氢氧化铁胶体 ．（判断对错）