契约型基金和公司型基金都具有法人资格。 ( )
参考答案：错
He has two sons, _____ work as chemists. [ ]
A. two of whom
B. both of whom
C. both of which
D. all of whom
开车时跟车工若发现跑车应立即（）。
A、发出紧急停车信号
B、手动落闸
C、与调度室联系
