除哪一项外，都可出现多克隆性免疫球蛋白增多
A．慢性感染
B．类风湿关节炎
C．淋巴瘤
D．多发性骨髓瘤
E．系统性红斑狼疮
参考答案：E
It occurred to me ________ Jack might be interested in the problem we had discussed.
A. what B. why how much D. that
how much D. that