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读下图中的甲、乙、丙三图，回答1—2题。 1、乙、丙两图中各岩石，按成因分类都属于变质岩的一组是 [ ] A、砂岩、页岩 B、大理岩、 C、砾岩、 D、石灰岩、 2、在三大类岩石中，沉积岩不同于其它两类岩石的特点有 [ ] A、硬度大，可用做建筑材料 B、分布广，出露于地表 C、具有层理构造，常含有化石 D、质地坚硬，常见大颗粒的矿物晶体
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【简答题】We are very glad to send you with this letter a copy of our catalogue for digital cameras. The high quality of our product is well-known and we are confident that a trial order wound convince you our ...
【单选题】When we are very sad,we should think of .
A.
something better
B.
better something
C.
anything better
D.
better anything
【简答题】We are very well connected with all the major dealers of light industrial products in this area. We are confident that we can sell large quantities of Chinese goods if we receive your offers at compet...
【单选题】We are very slowly improving the state of the environment by reducing the level of CO2 we produce.
A.
carefully
B.
gradually
C.
luckily
D.
happily
【简答题】听力原文：We are very interested in your office furniture. It seems to be of very good quality and design. You know, we are going to furnish our new office building. And we intend to buy a hundred sets. I'...
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