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问题 单项选择题 A1/A2型题

中国药典（2010年版）收载的维生素C原料、维生素C片、维生素C泡腾片、维生素C颗粒剂、维生素C钙、维生素C注射液的含量测定方法为（）

A.铈量法

B.碘量法

C.HPLC

D.紫外分光光度法

E.配位滴定法

答案

参考答案：B

单项选择题

关于脐带的描述，以下哪项不正确

A．若脐带附着于胎膜上，为帆状胎盘
B．脐带长于70cm或短于30cm属异常
C．脐动脉的含氧量高于脐静脉
D．单脐动脉常合并胎儿或胎盘异常
E．脐带先露也称脐带隐性脱垂
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单项选择题

One study conducted by a psychologist (121) of interviewing workers before and after the installation of a robot. The robot was used to control a matching process of stamping and assembling metal parts. Prior to installation, much of the work done by skilled machinists. After installation, the robot did the work, but the workers controlled the robot through the robot through a control panel. The results of the study indicated that the workers praised the robot (122) eliminating the physical labor and fatigue (123) the manual operation, but complained of more and continued stress. Prior to installation of the robot, there was time for talking or short periods of relaxation between jobs. Now, however, because of the speed of the robot, there was a need for constant scanning and monitoring of the operation (124) performed by the robot has the installation of the robot created a better work environment Has the change from physical labor to mental stress resulted in an improved (125) of life Much additional research is necessary.

（123）是（）

A.Of

B.consisted

C.for

D.being
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