1 mol某有机物在稀硫酸作用下,水解生成2 mol相同的物质。下列物质中: ①蔗糖 ②麦芽糖 ③淀粉 符合题意的物质可能是( )
Charles was alone at home, with_______ looking after him.
It is often ______ that human beings are naturally equipped to speak.
I can’t leave. She told me that I ______ stay here until she comes back.
—— Do you mind my opening the window? It’s a bit hot in here. —— ______ , as a matter of fact
It’s high time you had your hair cut ; it’s getting _______ .