下图各海域中，受洋流影响等温线最密集（相同温度差）和等温线向北凸的海域分别是 [

均由α和β两个多肽亚基构成，且α亚基高度同源的激素是()

A．促甲状腺激素

B．黑色细胞刺激素

C．卵泡刺激素

D．黄体生成素

E．催乳素

阅读理解。

     I have two new friends in our class. They are American girls. Their names Lucy and Lily. They are twelve.

They are twins. I am Wei Hua. I am Chinese. I am twelve, too. We are in No.6 Middle School. We are in Class

Two, Grade One. Lucy is Number 5 in Row 5. I am Number 5 in Row 8. Lily is behind Lucy. We are good

friends.

1. How old is Lily?

A. She's 11

B. She's 12

C. She's 13

D. She's 14

2. What class are the twins in?

A. They are in Class I

B. They are in Class 4

C. They are in Class 3

D. They are in Class 2

3. Are they students or teachers?

A. Yes, they are.

B. No, they aren't.

C. They are students.

D. They're teachers.

There is still a long way to go to solve all the problems ______ conservation of natural resources.[ ]

A. concerning

B. concerned

C. concerning about

D. concerned about

患者女，38岁，工人，因“全身鳞屑性红斑6年，泛发脓疱伴高热2d”来诊。患者于6年前开始于小腿出现鳞屑性红斑，瘙痒明显。先以慢性湿疹治疗，皮疹仍增多，并延及全身，皮疹冬重夏轻。后在某大医院确诊银屑病，经紫外线照射等治疗，皮疹基本稳定。6d前，使用某中药外洗，当时感到刺激，仍坚持使用了3d，因感觉有低热、乏力才停用。2d前，晨起后即发觉全身出现广泛密集分布的小脓疱，伴烧灼感，同时高热，体温达39.5℃，并有全身不适，关节酸痛，服用退热药及抗生素无效而来院就诊。

维A酸治疗银屑病的适应证包括（）。

A.严重的脓疱型银屑病

B.皮损局限的寻常型银屑病

C.严重的关节型银屑病

D.有肝功能损害者

E.严重的红皮病型银屑病

F.老年银屑病患者

急性风湿热不伴有心脏炎的患儿，阿司匹林治疗的总疗程为

A．1～3周

B．6～12周

C．3～6周

D．半年

E．1年