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【多选题】
中药制剂的含量测定中,进行样品处理的主要作用是 ( )
A.
使被测成分有效地从样品中释放出来,制成供分析测定的稳定试样
B.
除去杂质,净化样品,以提高分析方法的重现性和准确度
C.
进行富集或浓缩,以利于低含量成分的测定
D.
使试样的形式及所用溶剂符合分析测定的要求
E.
衍生化以提高方法的灵敏度和选择性
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参考答案:
举一反三
【单选题】–I’ve read another book this week.-ell, maybe ___ is not how much you read but what you read that counts.
A.
this
B.
that
C.
there
D.
it
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【单选题】—________ will you stay with me? —I will stay with you for ten days. [ ]
A.
How long
B.
How many
C.
How much
D.
How old
查看完整题目与答案
【多选题】实存账存对比表不是( )
A.
登记总分类账的直接依据
B.
调整账簿记录的记账凭证
C.
调整账簿记录的原始凭证
D.
登记日记账的直接依据
E.
编制会计报表的直接依据
查看完整题目与答案
【单选题】镁原子最外层的电子数是
A.
1个
B.
2个
C.
3个
D.
4个
查看完整题目与答案
【判断题】我们必须浏览不安全的网站,下载来历不明的程序。
A.
正确
B.
错误
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【单选题】— I'm going to the States. — How long ______in the States? [ ]
A.
you stay
B.
did you stay
C.
have you stayed
D.
are you staying
查看完整题目与答案
【多选题】在我们进入饭店时,首先映入眼帘的是饭店的前厅大堂,它是饭店的门面,有_______工作任务。
A.
销售客房
B.
为饭店创造清洁优雅的环境
C.
控制客房状况
D.
协调对客服务
E.
提供信息
查看完整题目与答案
【单选题】--Why do you suggest Mount Lu? --I believe ________ beauty of nature there will make ________ excellent impression on you.
A.
/; an
B.
the; the
C.
the; a
D.
the; an
查看完整题目与答案
【单选题】A lot of tourists will come to Lu Xun Museum tomorrow, _____ you had better get up early if you want to visit it. [ ]
A.
or
B.
but
C.
so
D.
though
查看完整题目与答案
【单选题】听力原文:How many nights will you stay? (12)
A.
Sorry.
B.
You know.
C.
I will stay for three nights.
查看完整题目与答案
相关题目:
【单选题】–I’ve read another book this week.-ell, maybe ___ is not how much you read but what you read that counts.
A.
this
B.
that
C.
there
D.
it
查看完整题目与答案
【单选题】—________ will you stay with me? —I will stay with you for ten days. [ ]
A.
How long
B.
How many
C.
How much
D.
How old
查看完整题目与答案
【多选题】实存账存对比表不是( )
A.
登记总分类账的直接依据
B.
调整账簿记录的记账凭证
C.
调整账簿记录的原始凭证
D.
登记日记账的直接依据
E.
编制会计报表的直接依据
查看完整题目与答案
【单选题】镁原子最外层的电子数是
A.
1个
B.
2个
C.
3个
D.
4个
查看完整题目与答案
【判断题】我们必须浏览不安全的网站,下载来历不明的程序。
A.
正确
B.
错误
查看完整题目与答案
【单选题】— I'm going to the States. — How long ______in the States? [ ]
A.
you stay
B.
did you stay
C.
have you stayed
D.
are you staying
查看完整题目与答案
【多选题】在我们进入饭店时,首先映入眼帘的是饭店的前厅大堂,它是饭店的门面,有_______工作任务。
A.
销售客房
B.
为饭店创造清洁优雅的环境
C.
控制客房状况
D.
协调对客服务
E.
提供信息
查看完整题目与答案
【单选题】--Why do you suggest Mount Lu? --I believe ________ beauty of nature there will make ________ excellent impression on you.
A.
/; an
B.
the; the
C.
the; a
D.
the; an
查看完整题目与答案
【单选题】A lot of tourists will come to Lu Xun Museum tomorrow, _____ you had better get up early if you want to visit it. [ ]
A.
or
B.
but
C.
so
D.
though
查看完整题目与答案
【单选题】听力原文:How many nights will you stay? (12)
A.
Sorry.
B.
You know.
C.
I will stay for three nights.
查看完整题目与答案
参考解析:
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