提货单是凭（）换限。
A.大副收据
B.场站收据
C.提单
D.拆箱单
参考答案：C
散射线由（）
A.光电效应产生
B.电子对效应产生
C.康普顿效应产生
D.相干效应产生
E.光核反应产生
General, Inc. , has net income of $ 650000 and one million shares outstanding. The profit margin is 6 percent and General, Inc. , is selling for $ 30.00. The price/sales ratio is equal to:
A. 2.77. B. 10.83. C. 0.06.
