皮皮学,免费搜题
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搜题
【单选题】
第一代试管婴儿技术是指:
A.
转基因技术
B.
单精子卵母细胞注射技术
C.
体外受精 —胚胎移植技术
D.
膜片钳技术
E.
胚胎植入前遗传学诊断技术
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【单选题】听力原文:Violence against women nullifies their enjoyment of human rights. That is the focus of a declaration of women foreign ministers attending the annual six-week session of the UN Human Rights Commis...
A.
正确
B.
错误
【判断题】数控机床在同一机床中的程序号能重复。 ( )
A.
正确
B.
错误
【多选题】按从动杆的运动方式,可以将凸轮分为
A.
移动从动杆
B.
摆动从动杆
C.
滚子从动杆
D.
平底从动杆
【单选题】( ) 与紫外可见分光光度计自检时出现 “ 钨灯能量过低 ” 的错误无关
A.
光路有挡光物
B.
钨灯未点亮
C.
氘灯未点亮
D.
软件故障
【单选题】In their efforts to persuade us to buy that product,shopkeepers have made a close study of human nature and have __________ all our little weaknesses. [     ]
A.
divided
B.
arranged
C.
classified
D.
separated
【判断题】数控机床外国控制电路主要在数控机床执行程序的过程中,检测主令信号,机床的各种位置信号以及机床运行过程中的互锁信号,从而使机床执行开,停等动作。
A.
正确
B.
错误
【多选题】自检时出现“氘灯能量过低”的错误,可能的原因是
A.
比色皿没有取出
B.
氘灯没有正确开启
C.
氘灯严重老化
D.
仪器操作软件故障
【单选题】听力原文: As is known to all, scientists and philosophers had studied the human body and its functions from very early times. Unfortunately, many of the ideas and theories, correct and incorrect, were acc...
A.
Scientists and philosophers had never studied the human body and its functions.
B.
Many of the ideas and theories that people used to accept were all incorrect.
C.
People used to accept ideas and theories.
D.
People used to accept undoubtedly many of the ideas and theories, correct and incorrect.
【判断题】“人性善”的思想是中国的文化特色,西方思想史中没有这种思想。
A.
正确
B.
错误
【简答题】建筑给水系统应保证用水点( )、( )、( )要求
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