1. A multiple-time programming apparatus using one-time programming (OTP, hereinafter) elements, comprising: a first adjusting OTP element, for outputting a first OTP signal; a second adjusting OTP element, for outputting a second OTP signal; and a logic device, coupled to the first adjusting OTP element and the second adjusting OTP element, for performing exclusive-OR (XOR, hereinafter) on the first OTP signal and the second OTP signal and outputting an adjusting OTP signal.