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【单选题】
下列基团中,能使苯环活化程度最大的是A.
— OH
B.
— Cl
C.
— CH3
D.
— CN
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举一反三
【单选题】The policeman saved the little girl from the gangs. He’s never afraid of them. I think he is a man of _________.
A.
importance
B.
use
C.
courage
D.
value
【简答题】以下（ ）不是借贷记账法的优点。
【简答题】以下（ ）不是借贷记账法的优点。
【简答题】How to choose the right career? With some ___1__ , perseverance and guidance, you’ll be able to choose the right career for you. You’ll need reflection, __2__ and believe in yourself. Step 1: List you...
【简答题】follow these job-saving measures. You Will Need Honesty /__________ / Solutions . Step 1: Admit it Tell your boss you messed up without delay. It will be worse if ___1________________ Step 2: Take it ...
【简答题】Let X[n] be a Markov chain on n ≥ 0 taking values 1 and 2 with one-step transition probabilities, Pij=P{X[n]= j|X[n−1]=i}, 1 ≤ i, j ≤ 2, given in matrix form as We describe the state probabilities at ...
【简答题】根据句意和首字母填空。 1. Lisa is an o________ girl. 2. Liu Ying is Liu Li's t________sister. 3. The girl is very c________ . Her friends like her very much. 4. I like w_________flowers. They are very bea...
【简答题】A. intensely B. more C. Endure D. jealous E. heartaches F. forward G. definite H. options I. soul mate J. Reminisce K. less L. bravely M. explore N. innocent ...
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