焊接时常见的焊缝内部缺陷有（）、（）、（）、（）、（）、（）等。

患者女性，36岁，患风湿性心脏病10年，近来心悸、胸闷痛、气短、下肢水肿、尿少。数分钟前突然晕倒，意识丧失，皮肤苍白，唇发绀，大动脉搏动扪不到，呼吸停止。

对患者进行复苏抢救中，判断心脏按压有效的主要方法是（）

A.测血压

B.呼喊患者看其是否清醒

C.摸桡动脉搏动

D.摸颈动脉搏动

E.观察末梢循环状况

More and more families go on a car trip each year. 小题1:H_______, the thought of trouble on the road may prevent you from going out. To avoid(避免) trouble, you need to make a careful小题2:p_______ for your trip.

First of all, choose a proper route for your trip. Consider 小题3:w_______ you are going and find several possible routes to it. Traffic and the 小题4: t_______ that you will spend on the road must be considered when you decide one.

Consider your luggage(行李) needs.小题5:B_______ you begin packing your necessities(必需品), think about how many people will be in your car and how much space they will need in order to 小题6: t_______ comfortably.

Try to avoid busy times. Usually highways are busier on Fridays and Sundays, so going on Tuesday or小题7:T______ will help you to avoid traffic jams. Driving at night is also a great way to miss the traffic and the kids can sleep小题8: d_______ the trip.

小题9:F_______, don’t forget to check your car carefully before leaving so that you can have a 小题10:s_______ trip.

Your umbrella is much bigger than _____. [ ]

A. I

B. me

C. my

D. mine

在Word97的编辑状态中，统计文档的字数，需要使用的菜单是（）

A.文件

B.视图

C.格式

D.工具

E.窗口

在分光光度法中，运用朗伯-比尔定律进行定量分析采用的入射光为（）

A、白光

B、单色光

C、可见光

D、紫外光