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【单选题】
对于难灰化的试样,如罐头肉、咸肉、鸡蛋、香肠等采用两次灰化,一般第一次灰化后 于坩埚中滴加(),并蒸干后再进行灰化,这样可达到完全破坏和分解有机质
A.
高氯酸
B.
硫酸
C.
过氧化氢
D.
硝酸
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参考答案:
举一反三
【简答题】单词拼写(共10小题,每小题1分,满分10分) 根据提供的首字母和中文填入相应的单词 He wandered around Tibet for about twp months. His experience is u_______.(难以置信) With the test a_________,(临近) the atmosphere in the class is getting tense. ...
【多选题】本工程中以下说法错误的是 。
A.
建施图中屋面标高为结构面标高
B.
屋面雨水流经变形缝
C.
房间内阳角采用 2m 高 1:2 水泥砂浆做护角
D.
采用了 150mm 高水泥砂浆踢脚
【单选题】本工程中以下说法错误的是( )
A.
建施图中屋面标高为结构面标高
B.
墙体材料采用了加气混凝土砌块
C.
房间阳角均做 2000mm 高水泥护角
D.
内门均为实木门
【多选题】本工程中以下说法错误的是 。
A.
建施图中屋面标高为结构面标高
B.
屋面雨水流经变形缝
C.
房间内阳角采用2m高1:2水泥砂浆做护角
D.
采用了150mm高水泥砂浆踢脚
【简答题】Millie:Hi. Kitty. you look great today. What a nice coat! Kitty: 1 . My father says it's a Chinese Tang costume(中国唐装). It feels quite soft. I liked it a lot. so my father bought it fo r me. Millie: 2 ...
【多选题】本工程中以下说法错误的是 。
A.
建施图中屋面标高为结构面标高
B.
屋面雨水流经变形缝
C.
房间内阳角采用 2m 高 1 : 2 水泥砂浆做护角
D.
采用了 150mm 高水泥砂浆踢脚
【单选题】听力原文:W. Come in, please. M: Hello, Roy. Where's Alan? I want her to type this letter for me. W: I' m afraid she can't, Rock. She isn't working today. M: Oh, why? Is she ill? W: No. She' s preparing fo...
A.
In Roy's office.
B.
In Rock's house.
C.
In a classroom.
【简答题】音程#mi-la属于( )和声大调和( )和声小调
【判断题】任何旅游接待单位与部门之间的合作,首先必须树立“和谐”的观念,使大家都能得到实惠,这是合作的基础。
A.
正确
B.
错误
【单选题】听力原文:W: Good morning, Dr. Smith. I'm not sure whether you can help me or not, but I'm getting desperate! M: Oh, what's wrong? What is making you so desperate? W: Well, everybody laughs at me because I...
A.
She doesn't have time to do exercise.
B.
She eats less but remains overweight.
C.
She doesn't eat fast foods but remains overweight.
D.
She doesn't know whether the doctor can help her.
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