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It ______ like a wonderful idea for me. But does it really work?
11个月前
It is necessary that he ______ in time to attend the meeting. [ ]
1年前
科学家们称超导现象是当代科学的“明珠”,假如人们已研制出常温下的超导体,在电炉丝、输电导线、保险丝中,适合用超导材料制作的是______;
1年前
________ do you know that? My father told me about that.
1年前
将一列有理数-1,2,-3,4,-5,6,……,按图所示有序排列
1年前