What is the most important feature 0f the backpack invented by Lawrence C．Rome and
A. It produces electricity for electronic devices while the wearer walks．
B. It can be used as cell phones．GPS in the military actions or field studies．
C. It is small and convenient．
D. It is light and easy to carry．
查看答案
People with a positive emotional style. may have all of the fo1lowing characteristics EXCEPT______．
A. happy
B. selfish
C. easy-going
D. energetic
A．restored B．recovered C．rebuit D．relaxed
A. restored
B. recovered
C. rebuit
D. relaxed
The word “springs” in Paragraph 3 means
A. a small stream 0f water flowing naturally from the earth．
B. the season of the year．occurring between winter and summer．
C. the act or an instance of jumping or leaping．
D. a length of metal wound around，which returns to its original shape after being pushed．
微信支付 
支付宝支付