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【单选题】
行车制动在产生最大制动作用时的踏板力,对于座位数小于或等于9的载客汽车A.
大于( )N。
B.
100
C.
200
D.
500
E.
700
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反馈参考答案：
举一反三
【单选题】下面与苯巴比妥的性质不相符的是
A.
具有互变异构形成烯醇式而显弱酸性
B.
分子结构中有酰胺键，容易发生水解反应
C.
与吡啶和硫酸铜溶液作用生成绿色配合物
D.
可采用巴比妥类药物和合成通法合成
【简答题】Books _________ (write) in easy English are very popular among Chinese school students. 2.How much time did you spend _________ (watch) TV last night? 3.My watch doesn ’ t work. It needs _________(rep...
【简答题】五、单词拼写: （共10小题；每小题0.5分，满分5分） 61. In order to c_____________ his son of the terrible disease, the old woman sold out all she had to collect money. 62. He is c_____________ and always comes up with new ...
【单选题】So nice to see you here. I ______ know you ______. [ ]
A.
don't, have come.
B.
don't, will come
C.
didn't, would come
D.
didn't, have come
【简答题】根据括号中所给的汉语写出单词，使句子意思完整正确。 1. I think the ________ (第六) lesson is the most difficult of all. 2. Come over to my house this evening and enjoy the fresh ________ (鱼肉). 3. When we climb the hill on Sunday...
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