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计算：（-3）2+[15-（-3）×2]÷3
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教案备课库《期末数学模拟试卷3》真题及答案
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下列哪个为对乙酰氨基酚的结构式
2234932
129
215
257
283
若方程在上有两个不相等的实数根则的取值范围为
（3，
）
[3，
）
[3，
]
（3，
]
尼可刹米的结构为
盐酸美沙酮的化学结构是
下列哪个为阿司匹林的结构式
1=52=153=2154=2145那么5=可不用写过程
两个样本率比较的Z检验计算式为
A
B
C
D
E
阿司咪唑的结构是
2373450175
211
213
215
217
计算＝
2234932
129
215
257
283
普鲁卡因胺的结构是
以上均不是
哌替啶的化学结构是
醋酸地塞米松的结构是
﹣的倒数是
﹣
﹣2
2
－32+－32+－52×－－0.32÷|－0.9|
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Ladiesandgentlemenpleasefastenyourseatbelts．Theplane_____．
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） [3，） [3，] （3，]
以上均不是
﹣2 2
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