核心银行系统中（）在账户层进行议价
A、允许
B、不允许
参考答案：A
— How is everything going on with you in America.
—Quite well. Not so smoothly as I expected, _______.
A．Instead
B．too
C．either
D．though
配电设备机架排列整齐，架间缝隙不大于（）mm。
A.1
B.2
C.3
D.5
