【简答题】认识过程中的 在幼儿的认识活动中表现非常突出,特别是表现于幼儿的注意、记忆和想象等心理活动之中。他们往往不能自觉地或专门地去记住一些东西,而是在他们感兴趣的活动中不知不觉地记住。
【单选题】Which of the following statements about irreversible inhibitors is wrong?
A.
The irreversible inhibitors bind covalently with or destroy a functional group on an enzyme that is essential for the enzyme’s activity, or they form a highly stable noncovalent association.
B.
Formation of a covalent link between an irreversible inhibitor and an enzyme is a particularly ineffective way to inactivate an enzyme.
C.
Irreversible inhibitors are a useful tool for studying reaction mechanisms.
D.
Amino acids with key catalytic functions in the active site can sometimes be identified by determining which residue is covalently linked to an inhibitor after the enzyme is inactivated.
【单选题】To fight against computer crimes, a computer system needs a sure way of identifying its right users and rejecting those who are not entitled to use it. The identification system should be quick, simpl...
【判断题】幼儿认识活动表现为具体性和形象性,具体表现在对事物的认识主要依赖于感知和表象。()
【单选题】Internet 是一个遵从( )协议,是将全世界不同的计算机网络互连起来的计算机网络。
【多选题】幼儿园指导幼儿认识日常生活中的自然现象主要是()。
A.
感知和了解某些自然现象,或者是能引起幼儿兴趣的自然现象
D.
使幼儿认识某些动植物,特别是与幼儿生活相近的,或者是能引起幼儿兴趣的动植物的名称、外形特征和生活习性
【单选题】在幼儿艺术活动中,教师要激发幼儿感受美、表现美的情趣,丰富他们的( )。
【简答题】Section B – TWO questions ONLY to be attempted A local government housing department (LGHD) has funds which it is proposing to spend on the upgrading of air conditioning systems in its housing invento...