问题
选择题
The police were seeking more information to find out ________ the rich merchant.
A．who was it that killed
B．who it was that killed
C．it was who killed
D．who was it killed
答案
答案：B
B [考查强调句型的特殊疑问句形式在宾语从句中的用法。特殊疑问词who应该在前面，排除C；又因为find out后面接的是宾语从句，故要使用陈述句语序，所以答案为B。]
bR(g) 下图是温度和压强对该反应的影响，其中压强P1<P2，由此可以判断 