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【简答题】
若配制pH=10.0的 NH 3 -NH 4 Cl组成的 缓冲溶液1.0L用去15 mol.L -1 氨水350mL,问需要多少 NH 4 Cl 克? (已知M(NH 4 Cl)=53.49) 提示:本题与上题相似,看看究竟用什么比方便计算
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举一反三
【简答题】A．attacked B．struck C．excited D．angered
【简答题】阅读下面短文,根据语境、音标或所给单词的提示,在每个空格内填入一个恰当的词,要求所填的词意义准确、形式正确,使短文意思完整、行文连贯。 Lucy and Lily are my friends. They come 8 1 America, They are twins ( 双胞胎 ) - they look the 8 2 /se ɪ m/ . They like to be in the sa...
【单选题】John was (irritated) by the necessity for polite conversation.
A.
annoyed
B.
troubled
C.
angered
D.
aroused
【单选题】This is _________ bedroom. It’s big and clean.
A.
Lily and Lucy
B.
Lily’s and Lucy
C.
Lily and Lucy’s
D.
Lily’s and Lucy’s
【简答题】阅读短文，判断正(√)误(×)。 Lily and Lucy are twin sisters. They're twelve and they look the same. They often wear the same clothes and the same shoes. So, we often can't tell who is Lily and who is Lucy. But th...
【单选题】Arachne competed _______ on weaving, and Arachne failed and was turned into a spider.
A.
Aphrodite
B.
Artemis
C.
Athena
D.
Hera
【简答题】在职业选择时,我们应当遵循哪些原则?
【单选题】患者女,45岁。阑尾切除术后5天,伤口红肿,触之有波动感,穿刺抽到脓液,其最佳的处理是
A.
无需特殊处理
B.
用雷夫奴尔纱布换药
C.
全身应用抗生素
D.
拆去缝线，伤口敞开引流
E.
局部理疗
【单选题】— I hear a new film is on these days. Shall we go to the cinema together, Lucy and Lily? — _____ Lily _____ I will go with you because one of us must be at home to help our father in the garden. [ ...
A.
Either; nor
B.
Either; or
C.
Neither; nor
D.
Both; and
【单选题】Arachne angered Athena and was turned into ________.
A.
Peacock
B.
Cat
C.
Spider
D.
Star
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