照明灯具的高温部位，当靠近非A级装修材料时，应采用隔热、散热等防火保护措施，灯饰所用

QDII的含义是合格境外机构投资者。 ( )

下图是一定时期内某商品的需求曲线，能导致曲线A向A’移动的因素有（  ）

①替代品价格下降   

②互补品价格下降   

③预期该商品价格下降

④消费者收入上升   

⑤产品质量问题

A．①②④

B．①②③

C．①③⑤

D．③④⑤

短文改错。

     I ever worked as a tour guide. One day I saw advertisement in the newspaper. I rang up the company, but I was given the job immediate. They asked me to take a tour around the city next morning. The

manager just told me to say anything that I could think about the city. My first tour is terrible. The old bus was not air-conditioned, because it was the middle of summer. It was uncomfortable inside the bus. The

tourist soon became very hot and angry. I owned a very hard time. I stayed there for a few weeks, and

then left and joined in a better company.

________________________________________________________________________________

在探测对方底细的时候，如果对方在交谈中滴水不漏，你可以采用的方法是（）

A.四面出击

B.漫天要价

C.火力侦察

D.投石问路

受到火焰或高温作用时，不着火，不冒烟，也不被烧焦的材料，包括天然或人工的无机材料及建筑中所用的金属材料叫做（）材料。

A.为延燃材料

B.为燃性

C.耐火