1) Tickets were selling at twice their face value.

2) These planes travel at twice the speed of sound.

3) Charges have risen at twice the rate of inflation.

4) The aeroplane will travel at twice the speed of sound.

5) Concorde crosses the Atlantic at twice the speed of sound.

6) The inversion is detected at twice about the height of 2000 m aircraft ascending and descending on 25 May 1991. There is a peak value of liquid water content(LWC) below the top of the inversion layer.

7) Where service intervals are unavailable , drain at twice the interval for conventional oil.

8) World trade has expanded at twice the rate of output and national governments have slowly but decidedly given up their protectionist policies to engage in the new global markets.

9) In Ivy League colleges, alumni children are admitted at twice the rate of other applicants.

10) Yet the illegal population is now estimated at twice what it was in 1986, partly because the law was largely unenforced once it passed.

11) The new airplane flies at twice the speed of sound.

12) The metal had been valued at twice or thrice its current price.

13) Her blood seemed to be pumping through her veins at twice the normal speed.

14) It follows that their demand for bank deposits is also growing at twice the rate of growth of nominal income.

15) The analog input is continuously sampled by an analog modulator at twice the clock frequency eliminating the need for external sample-and-hold circuitry.

16) Tall, thin and diffident around the edges, he speaks at twice normal speed,[http:///at twice.html] often inserting parenthetical commentary on his thoughts as he gallops ahead.

17) Spent a few times, he comes to son room, outside seeing son goggle at twice looking at a window only.

18) This does not mean that the plugs will wear at twice the normal rate, as the wasted spark is on the exhaust stroke, and is therefore under no compression.

1) Tickets were selling at twice their face value.