%_The leg of a barometric leg pump is longer than the Toricellian leg, which is about __________ metres._%

%_The leg of a barometric leg pump is longer than the Toricellian leg,

1.	%_The leg of a barometric leg pump is longer than the Toricellian leg, which is about __________ metres._%
A.	1
B.	5
C.	34
D.	10
Answer» E.