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【多选题】
关于制动液,以下说法正确的是A.
制动液具有吸湿性,因此必须密封保存
B.
制动液具有腐蚀性,操作时滴在手上应该尽快冲洗
C.
DOT5型号制动液为硅基,吸湿性差,所以奥迪均采用DOT5制动液
D.
制动液具有长效性,因此可以持续使用
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举一反三
【判断题】John McCain’s policies have had great influence on the Bush administration for the last eight years.
A.
正确
B.
错误
【单选题】Why did the author mention Senator John McCain and Ted Kennedy in Paragraph 6?
A.
Because they initiated legislation to find a solution to the problem of immigration.
B.
Because they are political foes but find common voice for immigrants.
C.
Because they are influential people in American politics.
D.
Because they hold opposing views on the issue of immigration.
【单选题】What 'change' did John McCain once called for during the election campaign?
A.
Increasing tax.
B.
Obliging insurers to offer affordable coverage to all people regardless of preexisting conditions.
C.
Insurance should be bought by individual instead of being provided by employers.
D.
To get employers out of health insurance.
【单选题】吸收操作的依据是( ),以达到分离气体混合物的目的。
A.
混合物中各组分在同一溶剂中有不同的溶解度
B.
混合物中各组分在同一溶剂中有不同的挥发度
C.
混合物中各组分在同一溶剂中有不同的浓度
D.
混合物中各组分在几种溶剂中有不同的溶解度
【简答题】B Barack Obama defeated John McCain in the longest and most costly presidential campaign in American history. The election results were widely seen as a strong statement by voters on economy. A public...
【判断题】John McCain’s greatest weakness is that he is too sentimental and cries regularly.
A.
正确
B.
错误
【简答题】气体吸收是用来分离( )的单元操作,其分离依据气体混合物中各组分在液体溶剂中的( )不同而实现分离的过程。
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