________，they found that he was gradually recovering.

A．To their much delight

B．To much delight

C．To much their delight

D．Much to their delight

下列关于小数的说法错误的是（　　）

A．12.000和12.0的大小是一样的

B．比0.6小的一位小数有5个

C．百分之六十七可以用0.67表示

D．23.0006读作二十三点零六