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【判断题】
对热不稳定的食品, 回流蒸馏法 不采用甲苯溶剂,而采用 二 甲苯溶剂,对含糖分的样品,选用苯溶剂。
A.
正确
B.
错误
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参考答案:
举一反三
【判断题】焊接完成的电路,通电之前一般要进行检查,主要检查元器件的正负极性有否接错,引脚是否接对,元器件之间的连接是否正确,有无虚焊。
A.
正确
B.
错误
【判断题】焊接完成的电路,通电之前一般要进行检查,主要检查元器件的正负极性有否接错,引脚是否接对,元器件之间的连接是否正确,有无虚焊。
A.
正确
B.
错误
【单选题】截止2018年底,城乡居民基本医保覆盖了( )亿人。
A.
13.5
B.
14
C.
10.5
D.
9.4
【单选题】—I don’t think this book is very interesting. — Neither is that one .
A.
I don’t like that book, either
B.
That book isn’t as interesting as this one
C.
That book isn’t interesting, either
D.
That book is also very interesting
【单选题】是否还记得之前这些内容已经讲授过?
A.
记得,讲授过
B.
不记得,没讲授
C.
记不清楚了
【判断题】普通话中浊音声母共有b,p,m,n四个。
A.
正确
B.
错误
【单选题】He didn't buy the book because he was interested in poetry.
A.
He didn't buy the book because he was not interested in poetry.
B.
He bought the book, but it is not because he was interested in poetry.
C.
He bought the book because he was interested in poetry.
D.
He bought the book because he was not interested in poetry.
【判断题】中国古典名著中宋江形象有着域外文学的影响痕迹
A.
正确
B.
错误
【单选题】关于口腔粘膜,以下哪项是错误的
A.
咀嚼粘膜的上皮较厚,可角化
B.
唇粘膜上皮无角化
C.
颊粘膜可发生异位增生的皮脂腺
D.
舌腹粘膜属于特殊粘膜
E.
唇的粘膜下层较厚,内含混合性腺体
【单选题】子查询中,使用in查询时,结果有可能出现重复数据,可以加上(     )关键词去掉重复数据。
A.
top
B.
distinct
C.
order by
D.
on
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