某摩托车的销售体系是每个县找一家独家代理，代理商每跨区销售一台钱江摩托车罚款1000

阅读理解。

     What do you do if you're stranded (处于困境的) on a lonely island? Surely you need to find a way to

get in touch with the outside world. Your best chance of doing this is to draw the attention of a passing plane. 　　

     Body signals (信号) 　　

     Pilots from different countries understand body signals if they have the correct training. When you wave

your arms up and down in a straight line, it means "yes". When you point downwards and swing your arm

from side to side, it means "no". If you want the pilot to know that it's safe to land, push your hands out in

front of you and bend (弯曲) your knees. If you want to say that it's not safe to land, put your arms in the

air and move them to one side. 　　

     Smoke signals 　　

     The smoke from a fire can be seen from far away, so it's a good way to draw attention. If the weather

is dry, it isn't hard to start a fire. Remember, however, that fires can be very dangerous if they get out of

control. Never light a fire unless you're sure that it can't spread. If the ground is dark, light smoke can be

seen more easily. Green grass and leaves produce light smoke. 　　

      Ground-to-air signals 　　

       It's a good idea to build some signals, too. Use large pieces of wood to make the symbols (标记). If

you can't find any wood, use earth. Some useful symbols are: 　　

      F"I need food and water." 　　

      II"I need medicine." 　

   　I"I am badly hurt." 　　

     X" I am unable to move from here." 　　

     Pilots' replies 　　

     If the pilot lowers the plane's wings from side to side, this means "message received and understood".

(At night, the pilot flashes the plane's green lights.)

     If the pilots flies the plane in a clockwise circle, this means "message received but not understood".

(At night, the pilot flashes the plane's red lights.) However, there is no signal which means "message not

received". Why not?

1. Which picture means "it's not safe to land"?

2. What can we learn from the passage? 　　

A. Swinging your arm from side to side means "yes". 　　

B. If the ground is dark, light smoke can't be seen. 　　

C. If you need some medicine, make a symbol "II". 　　

D. The pilots make replies with a blue light at night.

3. What is the passage mainly about? 　　

A. The explanation of building signals on an island. 　　

B. The importance of making signals on an island. 　　

C. Ways of sending out signals on a lonely island. 　　

D. Ways of receiving signals from a lonely island.

前列腺液中不含哪种物质（）

A.卵磷脂小体

B.凝固酶

C.淀粉样小体

D.纤溶酶

E.前列腺颗粒细胞

2005年6月5日，1988年7月21日出生的高中一年级学生小龙，因寰宇公司的公交车司机张某紧急刹车而受伤，花去若干医疗费。 2006年2月小龙伤愈继续上学，写了授权委托书给其父李某，让他代理其提起诉讼。李某以正当的诉讼参加人的身份于2006年3月对寰宇公司及其司机张某提起了诉讼，要求寰宇公司和张某承担违约责任。在诉讼进行中，李某将要求被告承担违约责任改为被告承担侵权责任，要求赔偿医疗费、护理费、误工费等各项费用共2.8万元。本案被告在答辩中认为，司机紧急刹车是因为行人陈某违章过路引起，责任应当由陈某承担，因此要求追加陈某作为无独立请求权的第三人参加诉讼。请回答下列问题：

依照有关法律的规定，李某将被告承担违约责任变更为承担侵权责任应在：

A．在第一审程序判决作出前

B．在第一审程序的举证期限届满前

C．在被告提交答辩状期间内

D．在第一审的法庭辩论终结前

自动气象站故障时错情计算方式为（）.

A.人为故障或操作错，不论值班员1小时内是否报告，都计算个人错情和站组错情。

B.非人为故障，值班员1小时内报告的，不算个人错情，但应计算站组错情。

C.非人为故障，值班员1小时内报告的，不算个人错情，也不算站组错情，但自动站故障后72小时内不能恢复正常工作的，要算站组错情。

D.非人为故障，值班员1小时内发现的，不算个人错情，也不算站组错情，但自动站故障后72小时内不能恢复正常工作的，要算站组错情。

拉深模压边装置一般分为（）两种。

A、刚性和弹性

B、橡皮、弹簧

C、弹簧、气垫

D、刚性和气垫