口腔粘膜白色斑块状病损,能擦去,您认为有以下哪个可能?()
A.白色角化病
B.白色念珠菌病
C.口腔白斑病
D.口腔扁平苔癣
E.盘状红斑狼疮
参考答案:B
句型转换。
1. The people in Beijing want to speak English well. (改为同义句)
The people in Beijing ________ to speak English well.
2. Basketball is my favourite sport. (改为同义句)
I ________ basketball________.
3. I think the food here is expensive. (改为同义句)
I ________ think the food here is ________.
4. Why not ask the man over there? (改为同义句)
Why________ ask the man over there?
5. He does his homework every morning. (改为否定句)
He ________ his homework every morning.
某投资者购买了执行价格为25元、期权价值为4元的看涨期权合约,并卖出执行价格为40元、期权价值为2.5元的看涨期权合约。如果该期权的标的资产的价格在到期时上升到50元,并且在到期日期权被执行,那么该投资者在到期时的净利润为(忽略交易成本):
A.8.5云
B.13.5元
C.16.5元
D.23.5元