写出下列词语的反义词。

温暖—____    茂密—____

微弱—____    暴露—____

漆黑—____    黑魆魆—____

在浙江省，一些经济作物如油菜、柑橘等，在开花时节，常因遭遇连续降雨而造成减产。造成减产的原因是    (    )

阅读理解。根据短文内容，判断正误。

    I have a good family. There are four people in my family. They are my father, my mother, my sister and I. My father is 40. He is a Chinese teacher. My mother is 38. She is an English teacher. They work in different schools. My sister's name is Li Fang. She is ten. We are in the same school, but in different grades. We have a nice picture of our family. It's on the wall. Look! Our father and mother are on the chair, and we two stand behind them.

用下面卡片中的数，按要求组数．

任意找两张卡片组成一组，使这两个数成一般关系(即不是互质关系，又不是倍数关系)．