单项选择题
A.4=M B.-M=M C.B=A-3 D.x+y=0
A.高级语言 B.汇编语言 C.机器语言 D.数据库语言
A.abc B.abc123 C.abc_123 D.123abc
A.(x^5-cos(29*3.14/180))/(sqr(exp(x)+log(y)+5)) B.(x^5-cos(29))/(sqr(exp(x)+ln(y))+5) C.(x^5-cos(29*3.14/180))/(sqr(exp(x)+ln(y))+5) D.(x^5-cos(0.506))/(sqr(exp(x)+log(y))+5)
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