【单选题】Where has John’s father been?
B.
He has been to the hairdresser’s.
【单选题】The greatest celestial observatory of Neolithic times, stonehenge, is (a work) of (such) (Magnitude as it) absorbed the energies of (prehistoric Britons) for three hundred years.
【单选题】It is said that this taxi driver was______for the road accident this morning.
【单选题】______ important development of the Neolithic age was not in the manufacture of stone tools but in the production of food.
【简答题】生活中用的市电电压为 V ,就是指交流电压的 是 220 V ,其最大值为 V 。
【单选题】Which of the following is the best definition of a civilization?
A.
Neolithic towns and cities
B.
Types of complex cultures
C.
An agricultural community
D.
Large population centers