期货从业人员违反有关从业机构的业务管理规定导致重大经济损失，情节严重的，由协会撤销其期货从业人员资格并在()拒绝受理从业人员资格申请。
A. 6个月内
B. 1年内
C. 2年内
D. 3年内或永久2
股份公司不得与其关联企业进行交易。()
A. 正确
B. 错误
Where dill De Forest begin regular radio broadcasts？
A. In Massachusetts.
B. On ships.
C. In New York.
D. On ships in New York harbor.
What was Clarence Birdseye surprised to learn？
A fish could survive being frozen.
B. The fish were easier to catch in the winter.
C. Food can be kept frozen indefinitely.
D. Solutions that freeze slowly form. large crystals.
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