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搜题
【判断题】
只含有一个手性碳原子的化合物都具有旋光性。
A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】在定量测定中,做空白试验可以( )。
A.
消除操作误差
B.
消除试剂误差
C.
减免过失误差
D.
减小随机误差
【单选题】I型糖尿病需要用下面哪个药物治疗
A.
格列本脲
B.
二甲双胍
C.
赛庚啶
D.
罗格列酮
E.
胰岛素
【判断题】多发性硬化病变比较弥散,因此症状和体征也比较复杂,可出现神经炎、球后视神经炎、眼肌麻痹、肢体瘫痪、锥体束征及精神症状。病变位于小脑时出现共济失调、肢体震颤及眼球震颤。
A.
正确
B.
错误
【判断题】多发性硬化病变位于小脑时出现共济失调,肢体震颤和眼球震颤。
A.
正确
B.
错误
【单选题】The point of the last short paragraph is that Richard was ______.
A.
cheated by his own successors
B.
determined m take revenge on his enemies
C.
more generous to his enemies than his successors
D.
unable to influence the behavior. of his successors
【简答题】检修一台水轮发电机组时,应放在安装间的四大件分别为: __________ , __________ , ___________ , ___________ 。
【简答题】检修一台水轮发电机组时,应放在安装间的四大件按照拆吊顺序分别为: __________,__________,___________,___________。
【简答题】vt. 使失去信心;摧毁
【单选题】The point of the last short paragraph is that Richard was ______.
A.
cheated by his own successors
B.
determined to take revenge on his enemies
C.
more generous to his enemies than his successors
D.
unable to influence the behavior. of his successors
【单选题】在下列情况下,哪种误差可以采用做空白实验的减免方法
A.
砝码未经校正
B.
试剂中含有微量的被测组分
C.
天平的零点有微小变动
D.
滴定时,读数最后一位数估计不准
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