馈线中的功率损耗会？

《天朝田亩制度》的革命性主要体现在（）

A.“凡天下田，天下人同耕”

B.“无处不均匀，无人不饱暖”

C.“天下人人不受私，物物归上主”

D.“有衣同穿，有钱同使”

同一木块分别漂浮在“水”中和“盐水”中．两种情况下，木块所受的浮力______，露出液面的体积______（均选填“相等”或“不相等”）．如果在木块上钉上几个铁钉后，木块只能漂浮在其中一种液体中，这种液体为______．

BRITAIN is a popular tourist place. But tours of the country have advantages and disadvantages .

ADVANTAGES

Free museums. No charge for good collections of art works

Pop music. Britain is the only country to rival(与…匹敌)the US on this point.

Cabs. London taxi drivers well know where they are going.

Choice of food. Visitors can find food from every corner of the world .

Fashion. Not only do fashion junkies love deeply and respect highly brand names such as Vivienne Westwood, Alexander McQueen; street styles are justly loved, too.

　　DISADVANTAGES

　　Poor service. People can dine out on the rudeness they have experienced,” says Professor Tony Seaton, of Luton University’s International Tourism Research Center.

　　Poor public transport. Trains and buses are promised to defeat tourists who have the most patience, so the over- crowded London tube is inexplicably(难以理解的) popular.

　　Rain. Still in the number one complaint. 

　　Overpriced hotels. The only European country with a higher rate of tax on hotel rooms is Denmark.

Drinking hours. Alcohol(酒) is in short supply after 11 pm even in “24-hour cities”.

小题1:What do tourists complain most?

A．Poor service.

B．Poor public transport.

C．Rain. 　　

D．Overpriced hotels.小题2: When is alcohol not able to get?

A．At 9: 00 pm

B．At 10: 00 pm

C．At 11: 00 pm

D．At 12: 00 pm小题3:Which of the following is true according to the passage?

A．You have to pay to visit the museums.

B．Only clothing with brand names are sold in London .

C．You cannot find Chinese food there.

D．The public transport is poor there.

学习方式不仅包括相对的（）及其关系，而且涉及学习习惯、学习意识、学习态度、学习品质等心理因素。

A.学习途径

B.学习方法

C.学习效率

D.学习能力

红外线测温的原理是利用红外线探测器将红外线辐射产生的热效应和光电效应转换成人们能识别的（）。

A．数据

B．信息

C．信号

D．符号