填空题

The substance does not dissolve in water____________________(不管是否加热).

【参考答案】

whether (it its) heated or not
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A．The houses for sale are of poor quality.B．The houses are too expensive for the couple to buy.C．The housing developers provide free trips for potential buyers.D．The man is unwilling to take a look at the houses for sale.
A．The houses for sale are of poor quality.
B．The houses are too expensive for the couple to buy.
C．The housing developers provide free trips for potential buyers.
D．The man is unwilling to take a look at the houses for sale.
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