题目内容
a=3,b=4,c=2,则4a-2b+3c=
[ ]
A.21
B.14
C.10
D.5
答案:C
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5.4
×0.35×2.7=[
]
A .19.584 |
B .4.6 |
C .5.103 |
D .3 |
题目内容
a=3,b=4,c=2,则4a-2b+3c=
[ ]
5.4
×0.35×2.7=[
]
A .19.584 |
B .4.6 |
C .5.103 |
D .3 |