【C13】A．followB．forecastC．analyzeD．apply

The scientists began to accumulate data.A．collectB．handleC．analyzeD．investigate

The scientists began to accumulate data.A．collectB．handleC．analyzeD．investigate

【C15】A．explainB．illustrateC．analyzeD．compare

【C6】A．illustrateB．evaluateC．analyzeD．tackle

60._________A. playB. hearC. collectD. analyze

What is the purpose of the passage?A. To analyze