备查账簿的登记应以审核无误的会计凭证作为依据( )。

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鞍鼻见于

A．鼻窦炎

B．肥大鼻息肉

C．酒糟鼻

D．先天性梅毒

E．痤疮

回顾世界和中国古代文明史,回答：

(1)世界四大文明发源地各是:____洲的________、________、________；和____洲的________。它们兴起的共同自然条件有________________________

(2)四大文明发源地从空间范围覆盖上又可以说是四大________,其共同的物质景观有　　　　　　________和________。

使用矿渣水泥、火山灰水泥时，浇水保温时间不得少于（）。

A、1d

B、3d

C、7d

D、14d

Roger Hickstead owns 100 shares of Cole Corporation stock with a current market value of $45 per share. Consensus stock price estimates from the leading industry analysts predict the price of Cole will fall to $35 per share in the next five months. What type of derivative strategy should Hiekstead employ if he is not willing to lose more than $10()

A. Buy a put with a strike price of $37 and a premium of $2. 

B. Buy a covered call with a strike price of $37 and a premium of $2.

C. Buy an uncovered call with a strike price of $37 and a premium of $2.