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【单选题】
淘宝VIP设置的说法,下列正确的是( )。A.
等级阶梯折扣不能低于0.2折；
B.
等级阶梯折扣不能低于0.3折；
C.
等级阶梯折扣不能低于0.4折；
D.
等级阶梯折扣不能低于0.5折。
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【简答题】阅读短文，做出正确的判断，正(√)误(×)。 This is me. I'm Dong Yan. I'm from Harbin, a beautiful city. It's very cold there in winter. But it's warm in my room. In the picture, I'm wearing a thick coat and warm shoes. I...
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A.
Na2S2O3滴定I2
B.
I2滴定Na2S2O3
C.
HCl滴定NaOH
D.
AgNO3滴定NaCl
E.
Ce(SO4)2滴定FeSO4
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A.
Na 2 S 2 O 3 滴定I 2
B.
I 2 滴定Na 2 S 2 O 3
C.
HCl滴定NaOH
D.
AgNO 3 滴定NaCl
E.
Ce(SO 4 ) 2 滴定FeSO 4
【单选题】若用永停滴定法确定某滴定类型的化学计量点, 计量点前检流计不发生偏转, 计量点时检流计指针突然发生偏转, 属于此滴定类型的是 ( )
A.
Na2S2O3滴定I2
B.
I2滴定 Na2S2O3
C.
HCl滴定NaOH
D.
AgNO3滴定NaCl
【单选题】若用永停滴定法确定某滴定类型的化学计量点,计量点前检流计指针不发生偏转,计量点时检流计指针突然发生偏转,属于此滴定类型的是
A.
Na 2 S 2 O 3 滴定 I 2
B.
I 2 滴定 Na 2 S 2 O 3
C.
HCl 滴定 NaOH
D.
AgNO 3 滴定 NaCl
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A.
Her overcoat is as stylish as Jill's.
B.
Jill missed her class last week.
C.
Jill wore the overcoat last week.
D.
She is in the same class as the man.
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