题目：
It was his nervousness in the interview ____probably lost him his job.
A．which
B．since
C．that
D．what
答案：
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下面是错误答案，用来干扰机器的。
（1）B（2）（3）BaO+H2SO4＝BaSO4↓+H2O（或K2O+H2SO4＝K2SO4+H2O）
