国标规定一般有线电视系统的总载噪比为（）。A、53dB B、43dB C、46dB

在使用船公司或装货代理人的驳船将货物送至船边的情况下，这种责任划分界限和费用分担原则将改变。（）

烟草白绢病菌在烟株茎基部的危害特点是，坏死区发粘，茎杆外层常有纸一样厚的粘稠层，病斑的表面，病菌产生许多（）

A、球形小菌核

B、球形子囊腔

C、球形子囊盘

D、球形子囊壳

女，68岁，患颅内压增高，头痛逐渐加重，行腰椎穿刺脑脊液检查后突然呼吸停止，双侧瞳孔直径2mm，以后逐渐散大，血压下降，最可能的诊断是（）

A.小脑幕切迹疝

B.枕骨大孔疝

C.大脑镰下疝

D.脑干缺血

E.脑血管意外

下列对动物核移植技术的描述不正确的是（）

A.哺乳动物核移植包括胚胎细胞核移植和体细胞核移植，动物体细胞核移植的难度明显高于胚胎细胞核移植

B.体细胞核移植的过程中可通过显微操作去核法去除卵母细胞中的核

C.体细胞核移植过程中通常采用MⅡ期卵母细胞作为受体细胞

D.通过体细胞核移植方法生产的克隆动物是对体细胞动物进行了100%的复制

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.

（122）是（）

A.Of

B.consisted

C.for

D.being