变压器并列运行的条件：接线组别相同，一、二次侧的额定电压分别相等（变比相等），阻抗电

Read and answer.(读对话，判断下列句子是否正确，正确的画“√”，错误的画“×”)  

Jimmy: Tomorrow is Easter. Let's buy some food. 

Nancy: Good idea. I like oranges. Do you like oranges?

Jimmy: No, I don't like oranges. 

Nancy: Do you like pears?

Jimmy: No, I don't like pears. 

Nancy: Do you like watermelons?

Jimmy: Yes, I do. 

( )1. Tomorrow is Mother's Day?

( )2. Jimmy likes oranges.

(     )3. Nancy likes watermelons.

(     ) 4. Jimmy likes pears.

函数f(x)=x²+2（a-1）x+2在区间(-∞，4]上是减函数，那么实数a的取范围是[ ]

A.a≥-3

B.a≤-3

C.a≥3

D.a≤5

下列关于分期的描述中错误的是（）

A.分期手续费可一次性收取也可分期收取

B.账单分期即是将账单的全部余额进行分期

C.账单分期的金额不能超过账单消费金额的90%

D.分期业务申请成功只要还未到账单日均可以撤销

E.账单分期的申请时间为账单日至最后还款日之间