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问题
名词解释
异形胞
答案
参考答案：
是存在于丝状生长种类中的型大、壁厚、专司固氮功能的细胞，数目少而不定，位于细胞链的中间或末端
填空题
根据图片填写单词。
1.
Danny _____________ to school yesterday.
2.
Jenny _____________ toast and jam for breakfast every day.
3.
I'm going to _____________ a star for the tree.
4.
Danny often _____________ to the bus stop.
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问答题 简答题
孔德对社会历史规律和历史研究的理论和方法的论述。
查看答案
Danny _____________ to school yesterday. 
Jenny _____________ toast and jam for breakfast every day. 
I'm going to _____________ a star for the tree. 
Danny often _____________ to the bus stop.