皮皮学，免费搜题
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【单选题】
患者出现黏痰难以咳出,用何药A.
乙酰半胱氨酸
B.
可待因
C.
喷托维林
D.
氨茶碱
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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.
【简答题】They had no plan of letting him go.
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