评估颈动脉狭窄程度时常使用NASCET法进行计算，即最狭窄处血管直

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问题单项选择题

评估颈动脉狭窄程度时常使用NASCET法进行计算，即最狭窄处血管直径与正常血管直径的比值，此处正常血管应选择（）

A.颈总动脉

B.颈动脉分叉

C.狭窄远端的正常颈内动脉

D.颈膨大

E.颈外动脉

答案

参考答案：C

阅读理解

阅读理解。

The star of the Harry Potter films has become the youngest person to earn a place on the list of Britain's

richest people. Daniel Radcliffe has owned 14 million pounds, but he is only 17 now.

Thanks to the ongoing Harry Potter films, Daniel Radcliffe would not have to worry about money for a

very long time. He is still at school but he will never have to work in future. Money has been pouring into

his company.

The youngest woman on the list is the singer Joss Stone. The 19-year-old singer has collected a fortune

of about 6 million pounds.

1. Daniel Radcliffe is _____. [ ]

A. an actor

B. a student

C. an actor and student

D. a boss and student

2. Joss Stone is _____. [ ]

A. the richest person

B. the riches singer

C. the youngest singer

D. the youngest woman

3. The underlined part "on the list" means _____ in Chinese. [ ]

A. 在表格上

B. 在排名榜上

C. 在电影界

D. 在艺术界

填空题

水是地球上一切生命得以生存的物质基础。地球上水的总储量约为1.4×10¹⁸ｍ³，其中海洋水的体积约1.3×10¹⁸ｍ³。太阳光照在地球上，地球获得它的能量。在靠近赤道的地区，阳光直射，接受的太阳能多；在靠近两极的地区，阳光斜射，接受的太阳能少。地球接收的太阳能大部分变为热，储存在海洋水里。

（1）读下图，你会发现某个区域海洋表层温度与纬度的关系是；

（2）影响水温分布的主导因素是海水吸收的太阳能，这样我们可以推测：某个区域海洋表层水温季节变化的规律是。