Cutter is spending less than he’s earning, and he uses his unspent income to buy some stock from Phi Optics Corporation. A macroeconomist will call Cutter’s act:
A.
investing
B.
saving
C.
both investing and saving
D.
neither investing nor spending
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【单选题】Which following is NOT the characteristics of synaptic conduction?
A.
One-way Conduction: from presynaptic to postsynaptic neuron
B.
Synaptic delay, there is an interval of at least 0.5 mS.
C.
Summation: The EPSP can perform the spatial and temporal summation.
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