题目内容：
a （） sentence is a sentence that comprises only one independent clause.
参考答案：
选择题：a （） sentence is a sentence that comprises only one independ
- 题目分类：中国大学MOOC慕课
- 题目类型：选择题
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According to the idea of hierarchy, sentences are based on （
According to the idea of hierarchy, sentences are based on （）.
血凝块与血栓的主要区别是（）。
血凝块与血栓的主要区别是（）。A．血凝块的大小B．血凝块的部位C．血凝块的质量D．是否与血管内膜粘连E．血凝块颜色深浅
紫外线波长在（）者具有杀菌作用，而以波长（）左右杀菌力最强。一般用波长2537Å的紫外光灯照射20～30分钟
紫外线波长在（）者具有杀菌作用，而以波长（）左右杀菌力最强。一般用波长2537Å的紫外光灯照射20～30分钟，即可杀死空气中的微生物。
Determiners such as some, any, many, much, little, few, all,
Determiners such as some, any, many, much, little, few, all, no, several, and enough etc. can all pe
English verbs have present tense and （） tense.
English verbs have present tense and （） tense.