问题 单项选择题 A1/A2型题

肝棘球蚴病的影像表现错误的是()

A.平扫病灶呈大小不一,单发或多发,呈圆形或类圆形,有时呈浅分叶

B.病灶边缘光整、清晰,囊壁密度略高于肝组织,钙化或合并感染时壁明显增厚

C.囊内密度均匀一致,增强后无强化

D.母囊内可见子囊,子囊的数目和大小不一

E.无钙化的子囊密度可高于母囊

答案

参考答案:E

解析:无钙化的子囊密度总是低于母囊,近周边部新生的子囊密度常低于中心部较陈旧的子囊。

单项选择题

The International Whaling Commission’s (IWC) decision to retain its ban on whaling does not mean that the killings will stop. Quite the (1) .

Save the Whale. It’s a phrase which became annoying with (2) , an unfavorable shorthand for liberal consciences. How appalling, then, that in the year 2010, it should be pressed (3) service again, to fight the whaling nations: Norway and Iceland, who exempted themselves from the 1986 prohibition (4) by the IWC, and Japan, which hunts whales under cover of " (5) research".

I am completely (6) by this week’s events in Morocco, where talks broke down. In my heart, I agree with those who have (7) the news that this year’s negotiations of the IWC have broken up, and (8) the prohibition would not be lifted (as the US proposed in a desperate (9) to break the deadlock). Yet reason (10) something else. If we do not (11) some kind of new control, the (12) will be able to go on with their slaughter (13) . Membership of the IWC is (14) , and the ban was only ever intended to be (15) . Japan, which has been buying the votes of nations with no interest in whaling (only in the 16 Japan offers in turn), will continue to press its case, having invested millions of dollars in its (17) . Geoffrey Palmer, New Zealand’s Commissioner at the IWC, has proposed a year-long (18) period. In the meantime, more whales will die.

We stand at a crossroad for whales. We see the (19) existence of these animals as an indicator of ecological threat. As symbols of an endangered world, they evoke, and provoke, a feeling that they have the same qualities as human on a scale equal to their size and supposed (20) . To some this is so much sentimental words in the New Age.

10()

A.reports

B.predicts

C.advises

D.says

单项选择题