下列各组离子能在指定溶液中大量共存的是 ①无色溶液中：②常温下，pH=14的溶液中：③室温下水电离的④加入Mg能放出H2的溶液中：⑤使甲基橙变红的溶液中：⑥室温下
Charles was alone at home, with_______ looking after him.
It is often ______ that human beings are naturally equipped to speak.
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