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【单选题】
实验中测定自来水中 Ca 2+ 含量时,调节 pH=12 ,使 Mg 2+ 形成 Mg(OH) 2 ,利用的是( )。
A.
沉淀掩蔽
B.
配位掩蔽
C.
氧化还原掩蔽
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举一反三
【简答题】A.For the sake of their health. B.For the maintenance of the heating or the air-condition. C.To make best use of their resources. D.To make full use of the heating or the air-condition.
【单选题】采用权责发生制基础时,下列业务中不能确认为当期收入的有
A.
收到当期销货款
B.
销售商品,货款尚未收到
C.
销售商品,同时收到货款
D.
收到以前月份的销货款
【单选题】______is a precaution which contributes to avoiding trouble under normal operating conditions.
A.
Constant inspection
B.
Keeping constant load
C.
Remaining constant temperature
D.
Varying speed
【单选题】采用权责发生制基础 时,下列业务中不能确认为当期收入的有
A.
销售商品货款尚未收到
B.
销售商品同时收到货款
C.
收到以前月份的销货款
D.
当期销货款
【单选题】Which publication should you check for complete information on Puget Sound weather conditions?
A.
Sailing Directions
B.
Light List
C.
Coast Pilot
D.
Chart of the area
【多选题】采用权责发生制基础时,下列业务中不能确认为期费用的有()。
A.
计提本月短期贷款利息
B.
支付下年的报纸.杂志费
C.
支付上月电费
D.
预付下季度房租
【简答题】The carrier shall not be relieved of liability by reason of the defective condition of the vehicle used by him in order to perform. the carriage under the CMR convention. ( )
【单选题】关于哮病的临床特征,说法不正确的是
A.
具有发作性
B.
喉间哮鸣音
C.
呼吸困难
D.
甚则不能平卧
E.
咳吐脓血痰
【单选题】已知A(x 1 ,-3)、B(x 2 ,-1)、C(x 3 ,2)在函数 y= - k 2 -1 x 的图象上,则x 1 、x 2 、x 3 的大小关系为(  )
A.
x 1 <x 3 <x 2
B.
x 3 <x 2 <x 1
C.
x 1 <x 2 <x 3
D.
x 3 <x 1 <x 2
【判断题】The carrier shall not be relieved of liability by reason of the defective condition of the vehicle used by him in order to perform. the carriage under the CMR convention.( )
A.
正确
B.
错误
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