问题 单项选择题

上述哪种病变超声检查可见牛眼征或声晕样声像图()。

A.胃肠道肿瘤

B.肝转移瘤

C.宫内节育环

D.占位性病变

E.肝内外胆管阻塞时

答案

参考答案:B

解析:

牛眼征及靶环征主要见于肝转移瘤,超声检查可见肝内多发强回声或低回声结节。如为乳腺癌转移常出现中央高回声周围低回声环的“牛眼征”或“声晕样”声像图;结肠癌转移常伴有钙化,可见强回声结节,后方有清晰声影;胰腺癌转移可见均匀低回声结节,后方无回声增强;肺腺癌、卵巢癌等转移可见囊变或囊实性结节声像图;黑色素瘤表现多发弱回声结节,中心出现多发点状。

多项选择题
单项选择题

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.

From the passage we know ().

A.France was defeated first by Denmark

B.Uruguay beat France and was defeated by Denmark

C.England beat Argentina and drew the next one

D.Sweden didn’t beat Argentina but kicked it out