经济适用住房基准价格由( )构成。 A．开发成本 B．各种赔偿金、违约金、滞纳金和

Jenny went into the room, took off her coat and _____ down on a sofa.[ ]

A. would sit

B. was sitting

C. sat

D. had sat

请根据下面提示，写一篇短文。词数不少于50。

You are discussing the following picture with your English friend Jim. Now you are telling him how you understand the picture and what makes you think so.

男性65岁，残根，有冠心病史，近两年来未发作，测血压21.3/12.1kPa（160/90mmHg），在拔时麻醉首选药是（）。

A．1%地卡因

B．2%地卡因

C．2%利多卡因

D．2%含肾普鲁卡因

E．1%含肾普鲁卡因

影响企业创造价值的因素不包括( )。

A．增长率
B．资本成本
C．收益率
D．投资资本回报率

暂态电击是人接触电场中对地绝缘的导体瞬间，积累在导体上的电荷以火花放电的形式通过人体对地突然放电，用来衡量它的单位是（）。

A.安培

B.伏特

C.焦耳

D.西门子