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I

• About 30 percent of the 3000 nuclear tracks measured fell within the cone of tritons.

II

• More than half of the objects identified on the basis of their radio position usually turn out (or prove) to be quasars.

• The approach to equilibrium of any degree of freedom is found (or proves, or appears) to be approximately exponential.

• Laser radiation was found (to be) capable of exciting ...