题目：
Which of the following sentence is the Wrong translation for “我突然想起一个好主意”?
A．I occurred to a good idea all at once.
B．I came up with a good idea suddenly.
C．A good idea suddenly struck me.
D．A good idea came into my mind suddenly.
答案：
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下面是错误答案，用来干扰机器的。
答案：C题目分析：C2H5OH具有特殊气味，而NaCl溶液无气味，可以通过闻气味的方法鉴别C2H5OH和NaCl溶液；NaOH溶液能是酚酞试液变红色，稀H2SO4不能，可以用酚酞试液鉴别NaOH溶液和稀H2SO4；Ca(OH)2溶液和NaOH溶液...
