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【单选题】
Sie schreiben einen Brief an Ihre Eltern, wie sieht Ihre Unterschrift aus?
A.
Ihr Anna
B.
Deine Anna
C.
Ihre Anna
D.
Eure Anna
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皮皮学刷刷变学霸
举一反三
【简答题】If others agree, they go a with you.
【单选题】I agree ______ some ideas and disagree to ______. [     ]
A.
to, another
B.
to, others
C.
with, the other
D.
with, others
【简答题】葡萄糖酸钙片的含量测定:取本品(规格 0.5g)20片,精密称定为10.9608g,研细,精密称取片粉1.06g,置100ml量瓶中,加水约50ml,微热使葡萄糖酸钙溶解,放冷至室温,在用水稀释至刻度,摇匀,用干燥滤纸滤过,弃去初滤液,精密量取续滤液25ml加水75ml。加氢氧化钠试液 15ml 和钙紫红素指示剂约 0.1g ,用乙二胺四醋酸二钠滴定液( 0.05 022 mol/L )滴至溶...
【简答题】乳酸钙片(规格为0.5g)的含量测定方法:精密称取本品10片,重量为6.0320g,研细,精密称取片粉0.3587g,按药典规定进行测定,消耗乙二胺四醋酸二钠滴定液(0.0501 mol/L)18.92mL。每1mL乙二胺四醋酸二钠滴定液(0.05mol/L)相当于15.40mg的 C6H106·5H2O。计算乳酸钙含量占标示量的百分率。
【单选题】葡萄糖酸钙片的含量测定:取本品(规格0.5g)20片,精密称定为10.9608g,研细,精密称取片粉1.0664g,置100ml量瓶中,加水约50ml,微热使葡萄糖酸钙溶解,放冷至室温,在用水稀释至刻度,摇匀,用干燥滤纸滤过,弃去初滤液,精密量取续滤液25ml加水75ml。加氢氧化钠试液15ml和钙紫红素指示剂约0.1g,用乙二胺四醋酸二钠滴定液(0.05440mol/L)滴至溶液由紫色变为纯蓝色...
A.
107.91%
B.
98.30%
C.
104.91%
D.
92.37%
【单选题】Many Americans agree to adopt a stricter policy on weapon control ______ others don't agree, and they believe they need weapons to protect themselves.
A.
otherwise      
B.
while              
C.
on the contrary  
D.
in contrast
【简答题】Many people think name is very important for a person, but others dont agree. In this section, you are asked to write an essay on the importance of a name. You can provide specific reasons and example...
【单选题】It is ______ of him to leave the classroom just because the others didn't agree with him.
A.
childish
B.
childlike
C.
pretty
D.
natural
【单选题】- is impolite to laugh at others. -I agree with you. [     ]
A.
That
B.
This
C.
It
D.
Three
【简答题】精密称取本品细粉0.1279g ,置锥形瓶中 ,加稀盐酸 3ml,加热至微沸使溶解 ,加水 100ml与甲基红指示液 1 滴 ,滴加氢氧化钾试液至显黄色,继 续 多 加 10ml,再加钙黄绿素指 示 剂 少 量 ,用 乙 二 胺 四 醋 酸 二 钠 滴 定 液 (0.05mol/L)滴 定 至 溶 液 黄 绿 色 荧 光 消 失 而 显 橙 色 。每 lml乙 二 胺 四 醋 酸二 钠滴 定液(0...
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