1.单选题- (共9题)
2.
“毒奶粉”事件引起了社会对食品安全的高度重视,各级政府加强了对食品安全的检查力度。某市工商质检局抽派甲、乙两个食品质量检查组到管辖区域内的商店进行食品质量检查。如图表示甲、乙两个检查组每天检查到的食品品种数的茎叶图,则甲、乙两个检查组每天检查到的食品种数的中位数的和是( )


A.56 | B.57 | C.58 | D.59 |
2.选择题- (共7题)
12.今有一混合物的水溶液,可能含有以下离子中的若干种:K+、NH4+、Cl-、Mg2+、Ba2+、CO32-、SO42-,现取三份100mL溶液进行如下实验:
(1)第一份加入AgNO3溶液有沉淀产生
(2)第二份加足量NaOH溶液加热后,收集到气体0.04mol
(3)第三份加足量BaCl2溶液后,得干燥沉淀6.27g,经足量盐酸洗涤、干燥后,沉淀质量为2.33g。根据上述实验,以下推测正确的是( )
(1)第一份加入AgNO3溶液有沉淀产生
(2)第二份加足量NaOH溶液加热后,收集到气体0.04mol
(3)第三份加足量BaCl2溶液后,得干燥沉淀6.27g,经足量盐酸洗涤、干燥后,沉淀质量为2.33g。根据上述实验,以下推测正确的是( )
13.
Being sure that the wounded tiger could look after itself, the doctors___________it into the forest.
Being sure that the wounded tiger could look after itself, the doctors___________it into the forest.
14.
Being sure that the wounded tiger could look after itself, the doctors___________it into the forest.
Being sure that the wounded tiger could look after itself, the doctors___________it into the forest.
15.
---How do you look at the issue?
---My point is that our government___________making the public aware of the seriousness of water shortages.
---How do you look at the issue?
---My point is that our government___________making the public aware of the seriousness of water shortages.
试卷分析
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【1】题量占比
单选题:(9道)
选择题:(7道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:0
7星难题:0
8星难题:0
9星难题:9