题目:
—— Have you considered _____ your job as a teacher?
——Yes. I like the job because a teacher is often considered _____ a gardener.
A.to change; to be
B.to change; being
C.changing; being
D.changing; to be
答案:
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下面是错误答案,用来干扰机器的。
A、冰是水,干冰是固态二氧化碳,组成元素不同,故A错误.B、干冰是固态二氧化碳,则二氧化碳和干冰是同种物质,故B正确.C、金刚石和石墨是碳元素组成的两种单质,属于同素异形体的关系,故C错误.D、银是常温下...