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【判断题】
若价格变动利于买方,期权买方选择行权,期权合约执行价格和市场价格之间的价差就是期权买方的净利润。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【简答题】桥式起重机的主要技术参数有（）、（）、（）、（）、（）、（）。
【单选题】So involved in his business _________ that he can hardly accompany his wife and child at weekends. [ ]
A.
the manager has become
B.
becomes the manager
C.
has become the manager
D.
has the manager become
【简答题】桥式起重机的主要技术参数有（）、（）、（）、（）、（）和（）等六项。
【简答题】桥式吊钩起重机的主要技术参数有哪些？
【单选题】Greatly moved by her words, __________.
A.
tears came to his eyes
B.
he could hardly hold back his tears
C.
tears could hardly be held back
D.
his eyes were filled with tears