吸水管喇叭口低于水池最低水位的距离不宜小于( )m。A．2.5 B．2.0 C．1

仔猪断奶方法有：一次断奶、安全断奶、逐步断奶、（）。

ADSL是一种宽带接入技术，通过在线路两端加装ADSL设备(专用MODEM)即可实现家庭PC机用户的高速联网。下面是有关ADSL的叙述：　　Ⅰ．它是一种非对称的传输模式，数据上传和下载速度不一致，上传速度比下载速度快　　Ⅱ．它像普通电话MODEM一样需要进行拨号才能上网　　Ⅲ．利用它上网时还可以打电话　　Ⅳ．它利用普通铜质电话线作为传输介质，成本较低上面的叙述中哪两个是正确的？

A．Ⅰ和Ⅱ

B．Ⅰ和Ⅳ

C．Ⅱ和Ⅲ

D．Ⅲ和Ⅳ

个体心理发展呈现以下几个特征（）

A.发展的进程呈现出一个个不同的阶段

B.个体心理发展表现为阶段性与连续性的统一

C.个体心理发展速度是匀速的

D.个体心理发展速度是不匀速的

Boris and Maria are general partners in a limited (commandite) partnership. Oleg is the only investing partner. Oleg’s capital contribution was one million roubles. The partnership agreement confines the business of the partnership to buying and selling furniture. Any transaction in excess of 500.000 roubles must be sanctioned by both of the general partners.In dealing with his regular suppliers, Boris was offered an attractive contract subject to a minimum value of 750.000 roubles. Boris entered into a contract to purchase furniture from this supplier, committing the partnership to expenditure of 750.000 roubles.Although usually not actively involved in the business, Oleg entered into a contract on behalf of the partnership with a supplier of electrical fittings for the home, as he considered this to be an excellent diversification that would increase the potential profitability of the business.Required:Analyse the implications of these contracts for Boris, Maria and Oleg, and explain whether the contracts are binding on the partnership.(10 marks)

硒光电池比硅光电池更稳定。