问题
选择题
_______ solids expand much less than liquids or gases, the continuous increases can add up to a lot, …
A．Although
B．If
C．Because
D．After
答案
答案：A
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_______ solids expand much less than liquids or gases, the continuous increases can add up to a lot, …
A．Although
B．If
C．Because
D．After
答案：A