烃是 [ ]
A、含有C、H元素的有机物
B、含有C元素的化合物
C、仅由C、H两种元素组成的有机物
D、完全燃烧只生成CO2和H2O的化合物
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根据短文内容,判断下列句子是否正确,对的写"A", 错的写"B"。
I have a dream, one day in the year of 2008 when Beijing hosts the Olympic Games, I , an 18-year
-old university student, will serve(服务)as a tour guide(导游)for many, many foreign athletes, news
reporters as well as tourists. I will tell them in fluent(流利的) English many stories about China, a
nation of 5000 years of civilization(文明), and about Beijing, a city of 3000 years of history. So I am
going to study harder from now on. I'm going to speak English and write in English as much as possible
(可能). And I'm going to learn more about the differences between Chinese culture and western culture
so that I can behave(表现)more politely(礼貌地) before foreigners.
( )1. The writer(作者) is from China.
( )2. When the writer is 18 years old, he is a university student.
( )3. Beijing will host the Olympic Games in the year of 2008.
( )4. Beijing is a city of 5000 years of history.
( )5.There are no differences between Chinese culture and western culture.
被称为“骑在羊背上”、“坐在矿车上”的国家是（ ）
A．巴西
B．澳大利亚
C．日本
D．新加坡
有些人利用税制改革的机会，故意把水搅浑，乘机哄抬物价______暴利。
A．谋取
B．获取
C．牟取
D．窃取
半导体存储器DRAM与SRAM不同的是需要 ______ 。
计提长期借款利息的账务处理中，借方可能涉及的账户有（）。
A.管理费用
B.财务费用
C.在建工程
D.长期借款