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【判断题】
存货按实际成本计价是指每种存货的收发结存,都按收发结存时的市场价格计价A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【简答题】They letting him go and would like him to stay on after his present contract expires.
【简答题】Fill in the blanks with the expressions learned in this module. Change the form where necessary. 1. The Chinese swimmer was at the beginning of the women ’ s 100-meter freestyle final, but she didn ’ ...
【单选题】欲配制 pH=3 的缓冲溶液 , 从缓冲容量考虑 , 应选用的最佳弱酸是 ( )及其共轭碱。 草酸 (pK θ a1 =1.27) 邻苯二甲酸 (pK θ a1 =2.95) 酒石酸 (pK θ a =4.37) 磷酸 (pK θ a1 =2.12)
A.
草酸
B.
邻苯二甲酸
C.
酒石酸
D.
磷酸
【单选题】欲配制 pH=3 的缓冲溶液 , 从缓冲容量考虑 , 应选用的最佳弱酸是 ( ) 草酸 (pK θ a1 =1.27) 邻苯二甲酸 (pK θ a1 =2.95) 酒石酸 (pK θ a =4.37) 磷酸 (pK θ a1 =2.12)
A.
草酸
B.
邻苯二甲酸
C.
酒石酸
D.
磷酸
【单选题】They _________ letting him go and want him to stay on after his present contract expires.
A.
has an intention of
B.
has no intention of
C.
have an intention of
D.
have no intention of
【单选题】They ________ letting him go and would like him to stay on after his present contract expires.
A.
have not intention of
B.
had no intention of
C.
had an intention of
D.
have an intention of
【简答题】They had no intention________letting him go and would like him to stay on after his pesent contract exoires.
【单选题】磷酸 pK a 1、 pK a 2、 pK a 3 分别为2.12、7.20、12.36,在pH=1.0的磷酸溶液中,磷酸的主要存在形体为( )
A.
磷酸根
B.
磷酸一氢根
C.
磷酸二氢根
D.
磷酸分子
【简答题】They had no plan of letting him go.
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