不能提供确凿证据证明的呆账，不得核销。( )
参考答案：对
水套炉正常运行时，水位应在（）之间。
A、1/3-1/2
B、1/2-2/3
C、1/4-1/3
D、2/3-3/4
Opposite the square is a very tall building,______top is well above the tops of the others.
A．its
B．whose
C．which
D．that
