Residents in the remote area have ________ about what the disease is all about, not to mention prevention and treatment

A．a little knowledge

B．little knowledge

C．few knowledges

D．a few knowledges

下列有关工程建设标准的叙述不正确的是（）。

A.国家标准都是强制性标准

B.行业标准是推荐性标准

C.强制性标准不包括地方标准

D.企业标准要求高于国家标准