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【单选题】
利用木桶效应理论，对下列化合物中不同氮原子的碱性强弱进行分析排序，以下由强到弱的顺序正确的是：【图片】A.
（1）＞（2）＞（3）
B.
（3）＞（1）＞（2）
C.
（2）＞（3）＞（1）
D.
（3）＞（2）＞（1）
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【简答题】选词填空。 1. ______________ (Is, Are) they in the study? 2. Where are the ______________ (key, keys)? 3. Let ______________ (I, me) clean the desk. 4. She ______________ (has, have) six books. 5. ________...
【多选题】How to find the key ideas in a sentence? To figure out the key idea of a sentence, ask yourself these questions:
A.
Who or what is the sentence about?
B.
What is the person or thing doing?
C.
What are minor details and what are the main ideas?
【单选题】The key to these questions is the emotional response we call anxiety. Unlike hunger or thirst, which build and dissipate (驱散) in the immediate present, anxiety is the sort of feeling that sneaks up on...
A.
The Origin of Anxiety.
B.
The Hazards of Anxiety.
C.
Healing Anxiety.
D.
Understanding Anxiety.
【单选题】The man suggested that by answering the five key questions, companies will
A.
beat against their opponents.
B.
guide their future plan.
C.
evaluate advantages and disadvantages of itself as well as its opponents.
【简答题】Unit 2 Content Questions 3. Why does the author say the key to tomorrow's “smart cars” will be sensors?
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