--- Excuse me, I want to withdraw some money, but I can’t find an ATM.

--- I know _______ nearby. Come on. I’ll show you.

A．it

B．that

C．some

D．one

某技师在遮色瓷烧结完成后发现金；瓷结合界面上出现许多微小气泡，其可能的原因是

A．金属基底表面氧化层过薄
B．金属基底表面氧化膜过厚
C．金属基底表面残留有油脂
D．瓷粉烧结时真空度不够
E．大气中烧结