编制好的程序，确保它的正确性和可靠性的同时，还应强调良好的编程风格。在书写功能性注解

为保证鱼苗长距离顺利运输，必须满足三个条件：①保持适量的氧气；②及时排出鱼苗呼出的二氧化碳；③水溶液应显弱碱性，防止细菌大量繁殖。在储运鱼苗的水中，最好加入 [ ]

A.氨水

B.过氧化钠

C.双氧水

D.过氧化钙

根据要求，用四舍五入法取下列各数的近似值：1.4249≈______（精确到百分位），0.02851≈______（精确到0.001）．

某物质的结构为，关于该物质的叙述正确的是 [ ]

A．一定条件下与氢气反应可以生成硬脂酸甘油酯

B．一定条件下与氢气反应可以生成软脂酸甘油酯

C．与氢氧化钠溶液混合加热能得到肥皂的主要成分

D．与其互为同分异构且完全水解后产物相同的油脂有三种

国际开发协会的最长贷款期限可达（）.

A.20年

B.30年

C.40年

D.50年

Goal chances came and goal chances went. But two of the world’s highest ranked teams—with some of football’s highest paid players—couldn’t get the ball into the net. And they were playing against sides that only just made it to the World Cup.

With two defeats, one draw and no goals, France collected its newest title since rising to the top of the game four years ago: The worst defending champion in World Cup history.

"I’m very disappointed, and it’s the end of a beautiful story," said a French striker David Trezeguet. "The story began in 1998 and ended today against Denmark. "

France won the 2000 European Championships and was ranked the best team on the planet before the World Cup.

Besides the goalposts and crossbars seeming to be against this unlucky team, France’s game plan has been the same for four years so opponents know it by heart.

Senegal, an African team playing in its first World Cup, surprised everyone by beating France in the opening World Cup match before entering the second round successfully. Uruguay and Denmark followed a similar strategy to stop France, creating a defensive barrier and launching many counter attacks.

Following France, Argentina became the second big name to take an early plane home from this year’s World Cup.

The South Americans were expected to become world champions for a third time. This was particularly because of an impressive display when they lost just one of their 18 qualifying matches.

The team’s 1-0 loss to England on June 7 was the beginning of a nightmare for the players. But even after this surprising defeat, they never thought that they would be going home so soon.

But a 1-1 draw in Argentina’s final group match against Sweden made the unexpected a reality.

Argentina was expected to become world champions because （）.

A．they won almost all the games in the tryout

B．they had won champions in World Cup three times

C．they lost the game to England only by 1-0

D．they beat a p opponent—Sweden