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There was a lot of traffic everywhere because of the 8﹣day holiday we had on   (nation) Day.

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is    are    has    have  
be   is   are   am  
1eV=1.6×10-19J  1J=1.6×10-19eV  1eV=1J  1eV=1.6×1019J  以上都不对  
why; that   that; because   which; why   that; that  
must   may   would   could  
lot of    less    little    much  
Though;but  Though;yet  A  
slow    slowly    fast    careful  
must have attended   must attend    could have attended   should attend  
happens    provides    causes    prevents  
EV70病毒  EV71病毒  EV72病毒  EV73病毒  EV74病毒  
1eV=1.6×1019J  1eV=1.6×10-19J  1eV=1J  1J=1.6×10-19eV  以上都不对  
1.24×104~1.24×106eV  1.43×102~71eV2  6.2~3.1eV  3.1~1.65eV  
1.243104~1.243106eV  1.433102~71 eV  6.2 ~3.1 eV  3.1 ~1.65 eV  
EV minus PV  EV minus AC  AC minus EV  PV minus EV  
<12eV  >12eV  >18eV  >18eV  >24eV  
why; that  that; because  which; why  that; that