(2012·福建高考)China recently tightened its waters controls near the Huangyan Island to prevent Chinese fishing boats from ________ in the South China Sea.

A．attacking

B．having attacked

C．being attacked

D．having been attacked

下列赋值语句中错误的是【 】

A．float f=11.1f;

B．double d=5.3E12；

C．char c='\r'；

D．byte bb=433；