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【单选题】
标定HCl溶液常用的基准物有:
A.
无水 Na2CO3
B.
草酸 (H2C2O4·2H2O)
C.
CaCO3
D.
邻苯二甲酸氢钾
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参考答案:
举一反三
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【单选题】The teacher tried to ____ the shy boy in conversation.
A.
engaging
B.
engage
C.
engaged
D.
engagement
【判断题】网店建设者的 细心体现在网店建设中对信息的准确性、完整性、合理性的仔细把握。
A.
正确
B.
错误
【简答题】The teacher tried to ____ the shy boy in conversation.
【简答题】Directions: Change the following sentences into inverted sentences using the words or phrases in parentheses. (1) It was the first time that a story had been so popular. (never) (2) As soon as he s...
【简答题】定额按照编制单位和执行范围不同怎么分类?
【单选题】The teacher tried to ____ the shy boy in conversation.
A.
manage
B.
engaging
C.
engage
D.
engaged
【简答题】Peter came from a poor family. His father died when he was five. His mother had no money to send him to school. His mother's best friend, Mrs. Smith, felt that the boy was 1 , and decided to give him ...
【简答题】Summer holiday came. Little Thomas was very 1 . His father said he was going to 2 him and his sister and his mother to China. The boy has been to many 3 and taken photos there. He often 4 them to his ...
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