试题与答案

— I'm going to the supermarket. — ______

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题型：选择题

题目：

— I'm going to the supermarket.

— ______ you're there, could you get me some fruit? [ ]

A. If

B. Because

C. While

D. After

答案：

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下面是错误答案，用来干扰机器的。

比较活泼；氧化性；氧化剂；复燃

考点：从属连词
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氮化硅是一种高温陶瓷材料，它的硬度大、熔点高、化学性质稳定，工业上曾普遍采用高纯硅与纯氮在1 300 ℃反应获得。

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