【C13】A．directionB．distributionC．distractionD．contraction

【C13】A．organizationalB．organizationC．organizingD．organized

【C13】A．ImmunityB．AddictionC．ExposureD．Reaction

【C13】A．therebyB．maybeC．thanD．otherwise

【C13】A．subtitlesB．provisionsC．providenceD．subjection

【C8】A．diffusionB．distributionC．developmentD．delusion

【C4】A．directionB．guideC．symbolD．model