题目

以NaCl为原料，可制取Na、Na2O2、NaOH和Na2CO3等。Na2CO3 ， 可用侯氏制碱法制取，主要涉及如下反应：N2(g)+3H2(g) 2NH3(g) ΔH=-92.4kJ·mol-1NaCl+NH3+CO2+H2O=NaHCO3↓+NH4Cl2NaHCO3 Na2CO3+CO2↑+H2O下列有关模拟侯氏制碱法的实验原理和装置正确的是（） A . 制取NH3 B . 制取NaHCO3 C . 分离NaHCO3 D . 制取Na2CO3 答案：C It is the education ______ he received when studying abroad ______ has made him such an excellent manager.    A. that; that        B. which; which        C. that; which        D. where; that