Question

10. Countless experiments and nights of no sleep        his great invention which was famous all over the world.

   A. turned to   B. led to

   C. stuck to   D. referred to

Answer 1

10. B主語和賓語之間的語境邏輯暗示該空表示"導(dǎo)致"，因此應(yīng)填led to。 turn to意為"朝向;變成;求助于"；stick to意為"堅(jiān)持"；refer to意為"提到;參考"。均與語境邏輯不吻合。