皮皮学，免费搜题
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【简答题】
Sentences arrangement. 1. You have found the right range hood manufacturer. As a leading enterprise in our industry, we constantly translate high-tech technology into satisfactory products for our customers. And our products is hugely popular in most parts of Asia and Australia. 2. Enclosed is the catalogue of our products. 3. It’s a great pleasure to receive your letter of January 3, 2008. 4. Looking forward to your order soon. 5. A special offer we supply for each user is two free nets every year.
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【单选题】已知 K sp (Mg(OH) 2 )=1.8 × 10 - 11 ,则 Mg(OH) 2 在 pH=12.00 的 NaOH 溶液中的溶解度为
A.
1.8×10－7mol·L－1
B.
1.0×10－5mol·L－1
C.
1.0×10－7mol·L－1
D.
1.8×10－9mol·L－1
【单选题】已知 K sp , Mg(OH) 2 =1.2×10 - 11 , Mg(OH) 2 在 0.01mol· L - 1 NaOH 溶液里 Mg 2 + 浓度 是 ______ mol· L - 1 。
A.
1.2×10 - 9
B.
4.2×10 - 6
C.
1.2×10 - 7
D.
1.0×10 - 4
【简答题】模仿例子写句子。 例: clean → cleaner → I'm a cleaner. 1. police → _____________ (男) → _______________________________________. 2. report → _____________ → _______________________________________. 3. act → ____...
【单选题】已知 K sp [Mg(OH) 2 ] = 5.61×10 -12 ,则 Mg(OH) 2 的饱和溶液中 [OH - ] 等于
A.
2.24×10 -5 mol·L -1
B.
1.12×10 -5 mol·L -1
C.
4.48×10 -4 mol·L -1
D.
2.24×10 -4 mol·L -1
【单选题】Mg(OH) 2 可溶于 。 已知( K sp , Mg(OH) 2 =1.2 × 10 - 11 )
A.
H 2 O
B.
浓 (NH 4 ) 2 SO 4 溶液
C.
NaOH 溶液
D.
Na 2 SO 4 溶液
【简答题】My friend has a big police dog named Kim. Police dogs are often very smart. Every Sunday afternoon my friend takes Kim for a long walk in the park. Kim likes walking very much. One Sunday afternoon a ...
【单选题】已知K sp [Mg(OH) 2 ] =5.61×10 -1 2 ,则Mg(OH) 2 的饱和溶液中[OH - ]等于
A.
1.12×10 -5 mol·L -1
B.
4.48×10 - 4 mol·L -1
C.
2.24×10 - 4 mol·L -1
D.
2.24×10 - 5 mol·L -1
【简答题】年度决算日金融企业不营业，专门办理年度决算。( )
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