就病例对照研究而言，下述错误的是（）。 A.属于描述性研究 B.设立比较组 C.研究

阅读理解。

Dear parents,

      Annual (一年一度) Sports Day-Wednesday 18th June 2008 King's Park Stadium We are pleased to

invite you to our Annual Sports Day, which we are holding at King's Park Stadium on Wednesday 18th

starting at noon. You're welcome to arrive at any time.

     Morning school will finish at 11:15 a.m., and this will let all boys make their own way to King's Park.

They should walk there. No buses will be provided. We hope to tell the results at about 3:30 p.m. No boys

will be allowed to leave until the results are told.

     If it rains heavily, boys will stay at school and have lessons. School will be over at 3:30 p.m. as usual.

So boys should bring books for all 5 lessons. We hope you will be able to come and enjoy the Sports Day.

                                                                                                                            Yours sincerely,

                                                                                                                             John Hatch

1. The passage is most probably _______.

A. a letter

B. postcard

C. an instruction

D. an advertisement

2. When will the Sports Day start?

A. At 11:15

B. At 3:30

C. At noon

D. After 3:30

3. From the passage we know _______.

A. boys leave school at 3:30 p.m. every day

B. boys won't have any lessons that day

C. boys will go to King's Park by bus

D. only boys' fathers are welcome to the Sports Day

45岁，男性，颈部渐进性增大包块，CT增强扫描如图所示，请选择最可能诊断（）

A.颈部肿大淋巴结

B.颈动脉夹层瘤

C.神经鞘瘤

D.颈动脉体瘤

E.甲状腺癌

制备空胶囊时可作为增塑剂的是（）.

A．甘油

B．二氧化钛

C．滑石粉

D．对羟基苯甲酸酯

E．琼脂

青年男性，2天前左耳后区疼痛，午睡后突然口角向右偏斜，查左额纹浅，闭目无力，左鼻唇沟浅，伸舌居中。诊断考虑为（）

A.右动眼神经炎

B.右脑桥炎

C.左中脑炎

D.右中脑炎

E.左面神经炎

随着居民生活水平的日益提高，人们更加追求健康的生活方式。下图为我国东南某城镇登山步行道规划示意图。据图回答下列问题。

在图上绘出M点地表坡面径流的流向。