男性，47岁，右上腹痛伴有明显黄疸，BUS显示肝外胆管及肝内肝管均不扩张，为确定诊断

You are assigned as the project manager in a project with an aggressive schedule. During a recent meeting your team complained about the high pressure applied and the many hours of overwork time. What should you do first

A) Try to obtain additional budget and time.
B) Improve team communication and availability of high quality data on risks. Use this information to enable you to make well-founded decisions earlier.
C) The problem might be the customer disturbing project rhythm. Keep him on distance from the team.
D) Apply fast tracking to shorten project duration without additional work.

His sister left home in 1998, and__________ since.

A．had not been heard of

B．has not been heard of

C．had not heard of

D．has not heard of

下列（）属于卷烟市场信息。

A、当地吸烟人口

B、男女吸烟比例

C、卷烟消费水平

D、国民经济发展情况

按规程规定线路的电压损耗应不超过额定电压的（）。

A、1％

B、5％

C、10％

D、20％

22，24，27，32，39，( )

A．40
B．42
C．50
D．52