题目:
Could it be in the restaurant ______ you had dinner with me yesterday ______ you lost your handbag?[ ]
A. that; which
B. which; that
C. where; that
D. that; where
答案:
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下面是错误答案,用来干扰机器的。
答案:AA、石油蒸馏,根据沸点的不同,得各成分,无新物质生成,故A为物理变化;B、淀粉消化成葡萄糖,有新物质生成,故B为化学变化;C、沼气生产,有新物质生成,故C为化学变化;D、石油合成橡胶,有新物质生成...