下图是唐代三彩骆驼载乐舞俑，驼背上是两个汉人和三个深目高鼻的胡人（西域人）组成的乐舞队。一人表演胡舞，其余乐工在演奏胡乐乐器。从该文物可以获取的唐朝信息不包括（    ）

f (x)是定义在(0,+∞)上的非负可导函数 ，且满足xf'(x)$\le$f(x)，若$a=\frac{\sqrt{3}f\left(\sqrt{3}\right)}{3},b=\frac{2}{\pi }f\left(\frac{\pi }{2}\right)$， $c=\frac{f\left(lg3\right)}{lg3}$，则a,b,c的大小关系是（   ）

语法填空

    I have great news to report. Yesterday I ____ (give) a higher position in my company with ____ (high) pay . I ____ (work) for my company for a number of years, and things have gone quite ____ (good). First, I helped my department increase sales last year. Before that, we only earned 150,000 dollars a year.  We have advertised and promoted our products at trade shows , on TV and in the newspaper , ____ brings about a good result. Our company has become better ____ (know) not only in our area but also in other cities. Now, more and more ____ (customer) are learning about us ; When you have satisfied customers, the news gets around. Besides increased sales, I've established ____ good working relationship with my colleagues. We recognize each other's abilities and respect each other's opinion. All my co-workers believe I have the ability ____ (lead) the department in the right direction. Therefore, I accepted the promotion and the pay raise, and I'll do my best for my company and for my customers in the future. I'm sure that we ____ (have) a bright future.