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【简答题】
( )可以溶入铁起到固溶强化作用。
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举一反三
【单选题】What is a revolving L/C?
A.
It’s an L/C under which the payment for goods can be renewed without amendment.
B.
It’s an L/C that can be used once and for all.
C.
It’s an L/C that can be extended to purchases of other goods with other suppliers.
【单选题】Name a major advantage of a revolving L/C as compared with multiple L/Cs. ______.
A.
It saves bank charges
B.
It involves less charges
C.
The applicants for the credit wouldn't pay any commission
D.
The terms of the credit can be amended if necessary
【单选题】What is a revolving L/C?
A.
Is an L/C under which the payment for goods can be renewed without amendment.
B.
Is an L/C that can be used once and for all.
C.
It's an L/C that can be extended to purchases of other goods with other suppliers.
【简答题】7甲状腺分泌的激素为()
【简答题】宜用冷水锅焯水的原料是( )。
【单选题】关于酶原与酶原的激活
A.
体内所有的酶在初合成时均以酶原的形式存在
B.
酶原的激活是酶的共价修饰过程
C.
酶原的激活过程也就是酶被完全水解的过程
D.
酶原激活过程的实质是酶的活性中心形成或暴露的过程
【多选题】抽样调查必然会出现抽样误差,减少抽样误差应注意( )。
A.
恰当地确定母体的数目
B.
恰当地确定样本的数目
C.
正确地确定抽选样本的方法
D.
正确地确定抽选样本的费用和时间
E.
加强抽样调查的组织工作，提高工作质量
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