-(-17)与-|-19|的大小关系是______．

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问题填空题

-(-

)与-|-

|的大小关系是______．

答案

∵-（-

）=

＞0，-|-

|=-

＜0，

∴-（-

＞-|-

|．

故答案为：-（-

＞-|-

|．

句型转换

句型转换。

1. I watched TV yesterday evening. (改为一般疑问句)

____________________________________________

2. Mike gets up at six o'clock every day. (改为否定句)

____________________________________________

3. I have three pens in my pencil-box. (改为同义句)

____________________________________________

4. My blue coat is fifty yuan. (对画线部分提问)

____________________________________________

5. with drawing Tom is his pictures pencil (.) (连词成句)

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填空题

G-菌的细胞壁外壁层中的（）对动物有毒性，因为只有细胞溶解时这种物质才释放出来，所以叫（）毒素。