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【单选题】
欲测定试样中SiO2含量,今由4位同学分别进行测定,试样称取量管2.20g,现获得5份试验报告,合理的一份报告为
A.
2.0852%
B.
2.085%
C.
2.08%
D.
2.1%
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【判断题】当我们有一个创业的黄金点子时,应该不断向用户验证项目的可行性,不要藏着掖着,闭门造车。
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【判断题】用两个字节补码存储带符号整数时,范围是-32768到32767。当运算的结果超出这个范围时,就不能正确表示了,此时称为溢出(overflow)
A.
正确
B.
错误
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【单选题】Could you please tell me ______ just now? [     ]
A.
what's happened
B.
what's happening
C.
what happened
D.
what was happened
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