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问题 单项选择题

根据销售公司《移动式起重机吊装作业安全管理规定》，下列起重机哪类属于移动式起重机（）。

A、轮胎起重机

B、桥式起重机

C、龙门式起重机

D、固定式桅杆起重机

答案

参考答案：A

解答题

五（1）班同学上体育课，每行站3人，最后一行少2人；每行站4人，最后一行少3人；每行站5人，结果最后一行只有1人。五（1）班最少有多少名同学？
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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.

A．Of

B．consisted

C．for

D．being
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