Justin Saunders is part of Britain's dream commuters, he runs _____________ near Reading.
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At the end of the working week, he flies from that week to his house in a village in southwest France, an hour's drive from Toulouse Airport and over 700 miles from his Hampshore office, when he books the flights early enough, it pays something like ___________ for a return ticket.
He and his family decided to move to France for the better ____________________.
They were fed up with the commuting and _____________.
H2(g) +1/2O2(g)=H2O(l) 的Qp与QV之差(kJ·mol-1)是
A. -3.7
B. 3.7
C. 1.2
D. -1.2