作业帮It____dangerous for people and there is an internatiomal sign for radioactivity.A:cannot beB:maybeC:can beD:is able to be 要有理由奥!有分
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It____dangerous for people and there is an internatiomal sign for radioactivity.A:cannot beB:maybeC:can beD:is able to be 要有理由奥!有分
It____dangerous for people and there is an internatiomal sign for radioactivity.
A:cannot be
B:maybe
C:can be
D:is able to be 要有理由奥!有分
It____dangerous for people and there is an internatiomal sign for radioactivity.A:cannot beB:maybeC:can beD:is able to be 要有理由奥!有分
选A吧.句子后面说有国际通用的标识,说明任何人都应该能看懂,逻辑上认为应该是不会危险的.所以B,C就排除了.而D的用法根本就有错.
选C.
这个东西会对人们有危险，上面有放射性辐射的标志。
radioactive就是辐射性的
It____dangerous for people and there is an internatiomal sign for radioactivity.A:cannot beB:maybeC:can beD:is able to be 要有理由奥!有分
It____dangerous for people and there is an internatiomal sign for radioactivity.A:cannot beB:maybeC:can beD:is able to be 要有理由奥!有分 为什么不选D.不对吗,那该怎么改才对
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