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【单选题】
词“千金纵买,脉脉此情谁诉”与哪位历史人物有关( )A.
B.
C.
班婕妤
D.
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举一反三
【单选题】An old and very rich friend of mine told me he had an unpleasant experience. He went to a famous jewelry shop and asked to be shown some gold necklaces. After examining several, he decided to buy a go...
A.
refused to take any
B.
invited him into the manager's office
C.
said that was all right
D.
said nothing was wrong with a check
【单选题】20“不知道”不能用于对旅客的服务中,原因是( )
A.
“不知道”体现出了旅客的无知
B.
“不知道”既是不礼貌,更反映出铁路旅客运输服务人员的不敬业
C.
“不知道”太过于傲慢,不利于开展工作
D.
“不知道”是更好为旅客服务的体现;
【单选题】在EDTA配位滴定中,有关EDTA酸效应的叙述何者是正确的( )
A.
酸效应系数愈大，配合物的稳定性愈高 ；
B.
酸效应系数愈小，配合物愈稳定；
C.
反应的pH愈大，EDTA的酸效应系数愈大；
D.
EDTA的酸效应系数愈大，滴定曲线的pM突跃范围愈宽
E.
选择配位滴定的指示剂与酸效应无关
【简答题】Please take a photo of your mindmap/outline of unit 5 and upload it.
【单选题】听力原文： My friend, Vernon Davies, kept birds. One day he phoned and told me he was going away for a week. He asked me to feed the birds for him and said that he would leave the key to his front door in ...
A.
His friend might have given him the wrong key.
B.
He didn't know where the back door was.
C.
He couldn't find the key in the mailbox.
D.
It was too dark to put the key in the lock.
【简答题】简述软体动物门和节肢动物门的主要特征。
【简答题】简述软体动物门和节肢动物门的主要特征。
【简答题】简述节肢动物门的主要特征。
【单选题】“不知道”不能用于对旅客的服务中,原因是( )
A.
“不知道”体现出了旅客的无知;
B.
“不知道”既是不礼貌,更反映出铁路旅客运输服务人员的不敬业;
C.
“不知道”太过于傲慢,不利于开展工作;
D.
“不知道”是更好为旅客服务的体现;
【简答题】简述节肢动物门的主要特征。
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