投保机动车交通事故责任强制保险后，保险公司应承担赔偿责任的情形是（）。 A.驾驶人未

市场经济条件下，租金的确定要以物业出租经营成本、税费和业主希望的投资回报率来确定。

若f：A→B能构成映射，则下列说法正确的有

（1）A中的任意一元素在B中都必须有像且唯一；

（2）A中的多个元素可以在B中有相同的像；

（3）B中的多个元素可以在A中有相同的原像；

（4）像的集合就是集合B．  

[      ]

A．1个  

B．2个  

C．3个  

D．4个

普通低合金影响热影响区淬硬程度的因素有（）等。

A、焊条

B、材料

C、结构形式

D、工艺条件

--- What was the weather like yesterday?

--- It was terrible. It rained so ________ that people could _______ go out.

A．hardly…hard

B．hardly… hardly

C．hard… hardly

D．hard… hard

A．(A) The director is too busy to attend to your proposal right now.

B．(B) The director will help you read the proposal tomorrow morning.

C．(C) You should hand in your proposal no later than tomorrow morning.

D．(D) You can make an appointment to see the director the next day.