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【单选题】
法国总统称中国书法是艺中之艺是观看了中国书法中的哪个汉字后?()
A.
B.
C.
D.
文学
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参考答案:
举一反三
【单选题】—I don't like chicken ______meat, ______I like fish very much.
A.
and; and
B.
and; but
C.
or; but
D.
or; and
【单选题】汽水是CO 2 的饱和溶液,其中存在如下平衡: H 2 CO 3 H + +HCO 3 - ……①    HCO 3 - H + +CO 3 2 - ……② 将汽水倒入试管中分别进行下列实验,相应分析结论错误的是
A.
加热、平衡①、②可能都向左移动
B.
加入澄清石灰水,平衡①、②均向右移动
C.
加入CaCO 3 悬浊液,CaCO 3 的溶解平衡向正方向移动
D.
通入过量CO 2 或滴加氯水,溶液pH均减小
【简答题】英译汉:lubrication
【单选题】蛋白质测定蒸馏过程中,接收瓶内的液体是( )。
A.
硼酸
B.
硝酸
C.
氢氧化钠
D.
磷酸
【简答题】Passage 2 Dear Linda, I have been in England three months now. I hope you don't think I've forgotten you. There have been so many places to see and so many things to do that I've not had much time for...
【单选题】. --- What can I do for? --- I’d like to buy a gift for my sister’s birthday, one at a proper price but of _____ great use and it’d better be ______ surprise.
A.
/; a
B.
the; a
C.
a; /
D.
/; the
【单选题】I shouldn’t have left him alone at home last night. He is only three years old. ( for )
A.
I shouldn’t have left him alone at home last night for he is only three years old.
B.
For I shouldn’t have left him alone at home last night,  he is only three years old.
【单选题】某温度下,向一未饱和的Na 2 CO 3 溶液中加入20g无水Na 2 CO 3 或加入50gNa 2 CO 3 ?7H 2 O晶体,都恰好使溶液达到饱和,则Na 2 CO 3 在此温度时的溶解度为(  )
A.
25g
B.
75g
C.
50g
D.
10g
【判断题】在饱和 H 2 CO 3 溶液中, [H + ] 为 [CO 3 2- ] 的两倍
A.
正确
B.
错误
【简答题】英译汉:lubrication system
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